664550460

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{487}}^1$

素因数の和:550

約数の個数: 288

約数和(自身を含む): 2498872320

約数和(自身を除く): 1834321860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 361, 378, 380, 399, 420, 487, 513, 532, 540, 570, 630, 665, 684, 722, 756, 798, 855, 945, 974, 1026, 1083, 1140, 1197, 1260, 1330, 1444, 1461, 1596, 1710, 1805, 1890, 1948, 1995, 2052, 2166, 2394, 2435, 2527, 2565, 2660, 2922, 3249, 3409, 3420, 3591, 3610, 3780, 3990, 4332, 4383, 4788, 4870, 5054, 5130, 5415, 5844, 5985, 6498, 6818, 7182, 7220, 7305, 7581, 7980, 8766, 9253, 9740, 9747, 10108, 10227, 10260, 10830, 11970, 12635, 12996, 13149, 13636, 14364, 14610, 15162, 16245, 17045, 17532, 17955, 18506, 19494, 20454, 21660, 21915, 22743, 23940, 25270, 26298, 27759, 29220, 30324, 30681, 32490, 34090, 35910, 37012, 37905, 38988, 40908, 43830, 45486, 46265, 48735, 50540, 51135, 52596, 55518, 61362, 64771, 64980, 65745, 68180, 68229, 71820, 75810, 83277, 87660, 90972, 92043, 92530, 97470, 102270, 111036, 113715, 122724, 129542, 131490, 136458, 138795, 151620, 153405, 166554, 175807, 184086, 185060, 194313, 194940, 204540, 227430, 249831, 259084, 262980, 272916, 277590, 306810, 323855, 333108, 341145, 351614, 368172, 388626, 416385, 454860, 460215, 499662, 527421, 555180, 582939, 613620, 647710, 682290, 703228, 777252, 832770, 879035, 920430, 971565, 999324, 1054842, 1165878, 1230649, 1249155, 1295420, 1364580, 1582263, 1665540, 1748817, 1758070, 1840860, 1943130, 2109684, 2331756, 2461298, 2498310, 2637105, 2914695, 3164526, 3497634, 3516140, 3691947, 3886260, 4746789, 4922596, 4996620, 5274210, 5829390, 6153245, 6329052, 6995268, 7383894, 7911315, 8744085, 9493578, 10548420, 11075841, 11658780, 12306490, 14767788, 15822630, 17488170, 18459735, 18987156, 22151682, 23733945, 24612980, 31645260, 33227523, 34976340, 36919470, 44303364, 47467890, 55379205, 66455046, 73838940, 94935780, 110758410, 132910092, 166137615, 221516820, 332275230, 664550460]

約数ペア:

[(1, 664550460), (2, 332275230), (3, 221516820), (4, 166137615), (5, 132910092), (6, 110758410), (7, 94935780), (9, 73838940), (10, 66455046), (12, 55379205), (14, 47467890), (15, 44303364), (18, 36919470), (19, 34976340), (20, 33227523), (21, 31645260), (27, 24612980), (28, 23733945), (30, 22151682), (35, 18987156), (36, 18459735), (38, 17488170), (42, 15822630), (45, 14767788), (54, 12306490), (57, 11658780), (60, 11075841), (63, 10548420), (70, 9493578), (76, 8744085), (84, 7911315), (90, 7383894), (95, 6995268), (105, 6329052), (108, 6153245), (114, 5829390), (126, 5274210), (133, 4996620), (135, 4922596), (140, 4746789), (171, 3886260), (180, 3691947), (189, 3516140), (190, 3497634), (210, 3164526), (228, 2914695), (252, 2637105), (266, 2498310), (270, 2461298), (285, 2331756), (315, 2109684), (342, 1943130), (361, 1840860), (378, 1758070), (380, 1748817), (399, 1665540), (420, 1582263), (487, 1364580), (513, 1295420), (532, 1249155), (540, 1230649), (570, 1165878), (630, 1054842), (665, 999324), (684, 971565), (722, 920430), (756, 879035), (798, 832770), (855, 777252), (945, 703228), (974, 682290), (1026, 647710), (1083, 613620), (1140, 582939), (1197, 555180), (1260, 527421), (1330, 499662), (1444, 460215), (1461, 454860), (1596, 416385), (1710, 388626), (1805, 368172), (1890, 351614), (1948, 341145), (1995, 333108), (2052, 323855), (2166, 306810), (2394, 277590), (2435, 272916), (2527, 262980), (2565, 259084), (2660, 249831), (2922, 227430), (3249, 204540), (3409, 194940), (3420, 194313), (3591, 185060), (3610, 184086), (3780, 175807), (3990, 166554), (4332, 153405), (4383, 151620), (4788, 138795), (4870, 136458), (5054, 131490), (5130, 129542), (5415, 122724), (5844, 113715), (5985, 111036), (6498, 102270), (6818, 97470), (7182, 92530), (7220, 92043), (7305, 90972), (7581, 87660), (7980, 83277), (8766, 75810), (9253, 71820), (9740, 68229), (9747, 68180), (10108, 65745), (10227, 64980), (10260, 64771), (10830, 61362), (11970, 55518), (12635, 52596), (12996, 51135), (13149, 50540), (13636, 48735), (14364, 46265), (14610, 45486), (15162, 43830), (16245, 40908), (17045, 38988), (17532, 37905), (17955, 37012), (18506, 35910), (19494, 34090), (20454, 32490), (21660, 30681), (21915, 30324), (22743, 29220), (23940, 27759), (25270, 26298)]