81351820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{6977}}^1$

素因数の和:7050

約数の個数: 48

約数和(自身を含む): 189913248

約数和(自身を除く): 108561428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 2332, 2915, 5830, 6977, 11660, 13954, 27908, 34885, 69770, 76747, 139540, 153494, 306988, 369781, 383735, 739562, 767470, 1479124, 1534940, 1848905, 3697810, 4067591, 7395620, 8135182, 16270364, 20337955, 40675910, 81351820]

約数ペア:

[(1, 81351820), (2, 40675910), (4, 20337955), (5, 16270364), (10, 8135182), (11, 7395620), (20, 4067591), (22, 3697810), (44, 1848905), (53, 1534940), (55, 1479124), (106, 767470), (110, 739562), (212, 383735), (220, 369781), (265, 306988), (530, 153494), (583, 139540), (1060, 76747), (1166, 69770), (2332, 34885), (2915, 27908), (5830, 13954), (6977, 11660)]