31298220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 100638720

約数和(自身を除く): 69340500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 71, 79, 90, 93, 124, 142, 155, 158, 180, 186, 213, 237, 279, 284, 310, 316, 355, 372, 395, 426, 465, 474, 558, 620, 639, 710, 711, 790, 852, 930, 948, 1065, 1116, 1185, 1278, 1395, 1420, 1422, 1580, 1860, 2130, 2201, 2370, 2449, 2556, 2790, 2844, 3195, 3555, 4260, 4402, 4740, 4898, 5580, 5609, 6390, 6603, 7110, 7347, 8804, 9796, 11005, 11218, 12245, 12780, 13206, 14220, 14694, 16827, 19809, 22010, 22041, 22436, 24490, 26412, 28045, 29388, 33015, 33654, 36735, 39618, 44020, 44082, 48980, 50481, 56090, 66030, 67308, 73470, 79236, 84135, 88164, 99045, 100962, 110205, 112180, 132060, 146940, 168270, 173879, 198090, 201924, 220410, 252405, 336540, 347758, 396180, 440820, 504810, 521637, 695516, 869395, 1009620, 1043274, 1564911, 1738790, 2086548, 2608185, 3129822, 3477580, 5216370, 6259644, 7824555, 10432740, 15649110, 31298220]

約数ペア:

[(1, 31298220), (2, 15649110), (3, 10432740), (4, 7824555), (5, 6259644), (6, 5216370), (9, 3477580), (10, 3129822), (12, 2608185), (15, 2086548), (18, 1738790), (20, 1564911), (30, 1043274), (31, 1009620), (36, 869395), (45, 695516), (60, 521637), (62, 504810), (71, 440820), (79, 396180), (90, 347758), (93, 336540), (124, 252405), (142, 220410), (155, 201924), (158, 198090), (180, 173879), (186, 168270), (213, 146940), (237, 132060), (279, 112180), (284, 110205), (310, 100962), (316, 99045), (355, 88164), (372, 84135), (395, 79236), (426, 73470), (465, 67308), (474, 66030), (558, 56090), (620, 50481), (639, 48980), (710, 44082), (711, 44020), (790, 39618), (852, 36735), (930, 33654), (948, 33015), (1065, 29388), (1116, 28045), (1185, 26412), (1278, 24490), (1395, 22436), (1420, 22041), (1422, 22010), (1580, 19809), (1860, 16827), (2130, 14694), (2201, 14220), (2370, 13206), (2449, 12780), (2556, 12245), (2790, 11218), (2844, 11005), (3195, 9796), (3555, 8804), (4260, 7347), (4402, 7110), (4740, 6603), (4898, 6390), (5580, 5609)]