2912221220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{25951}}^1$

素因数の和:26172

約数の個数: 48

約数和(自身を含む): 6348066816

約数和(自身を除く): 3435845596

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 181, 310, 362, 620, 724, 905, 1810, 3620, 5611, 11222, 22444, 25951, 28055, 51902, 56110, 103804, 112220, 129755, 259510, 519020, 804481, 1608962, 3217924, 4022405, 4697131, 8044810, 9394262, 16089620, 18788524, 23485655, 46971310, 93942620, 145611061, 291222122, 582444244, 728055305, 1456110610, 2912221220]

約数ペア:

[(1, 2912221220), (2, 1456110610), (4, 728055305), (5, 582444244), (10, 291222122), (20, 145611061), (31, 93942620), (62, 46971310), (124, 23485655), (155, 18788524), (181, 16089620), (310, 9394262), (362, 8044810), (620, 4697131), (724, 4022405), (905, 3217924), (1810, 1608962), (3620, 804481), (5611, 519020), (11222, 259510), (22444, 129755), (25951, 112220), (28055, 103804), (51902, 56110)]