19976220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:110

約数の個数: 240

約数和(自身を含む): 73180800

約数和(自身を除く): 53204580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 27, 30, 33, 36, 38, 44, 45, 54, 55, 57, 59, 60, 66, 76, 81, 90, 95, 99, 108, 110, 114, 118, 132, 135, 162, 165, 171, 177, 180, 190, 198, 209, 220, 228, 236, 270, 285, 295, 297, 324, 330, 342, 354, 380, 396, 405, 418, 495, 513, 531, 540, 570, 590, 594, 627, 649, 660, 684, 708, 810, 836, 855, 885, 891, 990, 1026, 1045, 1062, 1121, 1140, 1180, 1188, 1254, 1298, 1485, 1539, 1593, 1620, 1710, 1770, 1782, 1881, 1947, 1980, 2052, 2090, 2124, 2242, 2508, 2565, 2596, 2655, 2970, 3078, 3135, 3186, 3245, 3363, 3420, 3540, 3564, 3762, 3894, 4180, 4455, 4484, 4779, 5130, 5310, 5605, 5643, 5841, 5940, 6156, 6270, 6372, 6490, 6726, 7524, 7695, 7788, 7965, 8910, 9405, 9558, 9735, 10089, 10260, 10620, 11210, 11286, 11682, 12331, 12540, 12980, 13452, 15390, 15930, 16815, 16929, 17523, 17820, 18810, 19116, 19470, 20178, 22420, 22572, 23364, 23895, 24662, 28215, 29205, 30267, 30780, 31860, 33630, 33858, 35046, 36993, 37620, 38940, 40356, 47790, 49324, 50445, 52569, 56430, 58410, 60534, 61655, 67260, 67716, 70092, 73986, 84645, 87615, 90801, 95580, 100890, 105138, 110979, 112860, 116820, 121068, 123310, 147972, 151335, 169290, 175230, 181602, 184965, 201780, 210276, 221958, 246620, 262845, 302670, 332937, 338580, 350460, 363204, 369930, 443916, 454005, 525690, 554895, 605340, 665874, 739860, 908010, 998811, 1051380, 1109790, 1331748, 1664685, 1816020, 1997622, 2219580, 3329370, 3995244, 4994055, 6658740, 9988110, 19976220]

約数ペア:

[(1, 19976220), (2, 9988110), (3, 6658740), (4, 4994055), (5, 3995244), (6, 3329370), (9, 2219580), (10, 1997622), (11, 1816020), (12, 1664685), (15, 1331748), (18, 1109790), (19, 1051380), (20, 998811), (22, 908010), (27, 739860), (30, 665874), (33, 605340), (36, 554895), (38, 525690), (44, 454005), (45, 443916), (54, 369930), (55, 363204), (57, 350460), (59, 338580), (60, 332937), (66, 302670), (76, 262845), (81, 246620), (90, 221958), (95, 210276), (99, 201780), (108, 184965), (110, 181602), (114, 175230), (118, 169290), (132, 151335), (135, 147972), (162, 123310), (165, 121068), (171, 116820), (177, 112860), (180, 110979), (190, 105138), (198, 100890), (209, 95580), (220, 90801), (228, 87615), (236, 84645), (270, 73986), (285, 70092), (295, 67716), (297, 67260), (324, 61655), (330, 60534), (342, 58410), (354, 56430), (380, 52569), (396, 50445), (405, 49324), (418, 47790), (495, 40356), (513, 38940), (531, 37620), (540, 36993), (570, 35046), (590, 33858), (594, 33630), (627, 31860), (649, 30780), (660, 30267), (684, 29205), (708, 28215), (810, 24662), (836, 23895), (855, 23364), (885, 22572), (891, 22420), (990, 20178), (1026, 19470), (1045, 19116), (1062, 18810), (1121, 17820), (1140, 17523), (1180, 16929), (1188, 16815), (1254, 15930), (1298, 15390), (1485, 13452), (1539, 12980), (1593, 12540), (1620, 12331), (1710, 11682), (1770, 11286), (1782, 11210), (1881, 10620), (1947, 10260), (1980, 10089), (2052, 9735), (2090, 9558), (2124, 9405), (2242, 8910), (2508, 7965), (2565, 7788), (2596, 7695), (2655, 7524), (2970, 6726), (3078, 6490), (3135, 6372), (3186, 6270), (3245, 6156), (3363, 5940), (3420, 5841), (3540, 5643), (3564, 5605), (3762, 5310), (3894, 5130), (4180, 4779), (4455, 4484)]