20468700

素因数分解:

$2^2\times 3^4\times 5^2\times 7^1\times {\mathrm{19}}^2$

素因数の和:71

約数の個数: 270

約数和(自身を含む): 80031336

約数和(自身を除く): 59562636

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 25, 27, 28, 30, 35, 36, 38, 42, 45, 50, 54, 57, 60, 63, 70, 75, 76, 81, 84, 90, 95, 100, 105, 108, 114, 126, 133, 135, 140, 150, 162, 171, 175, 180, 189, 190, 210, 225, 228, 252, 266, 270, 285, 300, 315, 324, 342, 350, 361, 378, 380, 399, 405, 420, 450, 475, 513, 525, 532, 540, 567, 570, 630, 665, 675, 684, 700, 722, 756, 798, 810, 855, 900, 945, 950, 1026, 1050, 1083, 1134, 1140, 1197, 1260, 1330, 1350, 1425, 1444, 1539, 1575, 1596, 1620, 1710, 1805, 1890, 1900, 1995, 2025, 2052, 2100, 2166, 2268, 2394, 2527, 2565, 2660, 2700, 2835, 2850, 3078, 3150, 3249, 3325, 3420, 3591, 3610, 3780, 3990, 4050, 4275, 4332, 4725, 4788, 5054, 5130, 5415, 5670, 5700, 5985, 6156, 6300, 6498, 6650, 7182, 7220, 7581, 7695, 7980, 8100, 8550, 9025, 9450, 9747, 9975, 10108, 10260, 10773, 10830, 11340, 11970, 12635, 12825, 12996, 13300, 14175, 14364, 15162, 15390, 16245, 17100, 17955, 18050, 18900, 19494, 19950, 21546, 21660, 22743, 23940, 25270, 25650, 27075, 28350, 29241, 29925, 30324, 30780, 32490, 35910, 36100, 37905, 38475, 38988, 39900, 43092, 45486, 48735, 50540, 51300, 53865, 54150, 56700, 58482, 59850, 63175, 64980, 68229, 71820, 75810, 76950, 81225, 89775, 90972, 97470, 107730, 108300, 113715, 116964, 119700, 126350, 136458, 146205, 151620, 153900, 162450, 179550, 189525, 194940, 204687, 215460, 227430, 243675, 252700, 269325, 272916, 292410, 324900, 341145, 359100, 379050, 409374, 454860, 487350, 538650, 568575, 584820, 682290, 731025, 758100, 818748, 974700, 1023435, 1077300, 1137150, 1364580, 1462050, 1705725, 2046870, 2274300, 2924100, 3411450, 4093740, 5117175, 6822900, 10234350, 20468700]

約数ペア:

[(1, 20468700), (2, 10234350), (3, 6822900), (4, 5117175), (5, 4093740), (6, 3411450), (7, 2924100), (9, 2274300), (10, 2046870), (12, 1705725), (14, 1462050), (15, 1364580), (18, 1137150), (19, 1077300), (20, 1023435), (21, 974700), (25, 818748), (27, 758100), (28, 731025), (30, 682290), (35, 584820), (36, 568575), (38, 538650), (42, 487350), (45, 454860), (50, 409374), (54, 379050), (57, 359100), (60, 341145), (63, 324900), (70, 292410), (75, 272916), (76, 269325), (81, 252700), (84, 243675), (90, 227430), (95, 215460), (100, 204687), (105, 194940), (108, 189525), (114, 179550), (126, 162450), (133, 153900), (135, 151620), (140, 146205), (150, 136458), (162, 126350), (171, 119700), (175, 116964), (180, 113715), (189, 108300), (190, 107730), (210, 97470), (225, 90972), (228, 89775), (252, 81225), (266, 76950), (270, 75810), (285, 71820), (300, 68229), (315, 64980), (324, 63175), (342, 59850), (350, 58482), (361, 56700), (378, 54150), (380, 53865), (399, 51300), (405, 50540), (420, 48735), (450, 45486), (475, 43092), (513, 39900), (525, 38988), (532, 38475), (540, 37905), (567, 36100), (570, 35910), (630, 32490), (665, 30780), (675, 30324), (684, 29925), (700, 29241), (722, 28350), (756, 27075), (798, 25650), (810, 25270), (855, 23940), (900, 22743), (945, 21660), (950, 21546), (1026, 19950), (1050, 19494), (1083, 18900), (1134, 18050), (1140, 17955), (1197, 17100), (1260, 16245), (1330, 15390), (1350, 15162), (1425, 14364), (1444, 14175), (1539, 13300), (1575, 12996), (1596, 12825), (1620, 12635), (1710, 11970), (1805, 11340), (1890, 10830), (1900, 10773), (1995, 10260), (2025, 10108), (2052, 9975), (2100, 9747), (2166, 9450), (2268, 9025), (2394, 8550), (2527, 8100), (2565, 7980), (2660, 7695), (2700, 7581), (2835, 7220), (2850, 7182), (3078, 6650), (3150, 6498), (3249, 6300), (3325, 6156), (3420, 5985), (3591, 5700), (3610, 5670), (3780, 5415), (3990, 5130), (4050, 5054), (4275, 4788), (4332, 4725)]