25581820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{31}}^2$

素因数の和:104

約数の個数: 72

約数和(自身を含む): 61057584

約数和(自身を除く): 35475764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 961, 1210, 1331, 1364, 1705, 1922, 2420, 2662, 3410, 3751, 3844, 4805, 5324, 6655, 6820, 7502, 9610, 10571, 13310, 15004, 18755, 19220, 21142, 26620, 37510, 41261, 42284, 52855, 75020, 82522, 105710, 116281, 165044, 206305, 211420, 232562, 412610, 465124, 581405, 825220, 1162810, 1279091, 2325620, 2558182, 5116364, 6395455, 12790910, 25581820]

約数ペア:

[(1, 25581820), (2, 12790910), (4, 6395455), (5, 5116364), (10, 2558182), (11, 2325620), (20, 1279091), (22, 1162810), (31, 825220), (44, 581405), (55, 465124), (62, 412610), (110, 232562), (121, 211420), (124, 206305), (155, 165044), (220, 116281), (242, 105710), (310, 82522), (341, 75020), (484, 52855), (605, 42284), (620, 41261), (682, 37510), (961, 26620), (1210, 21142), (1331, 19220), (1364, 18755), (1705, 15004), (1922, 13310), (2420, 10571), (2662, 9610), (3410, 7502), (3751, 6820), (3844, 6655), (4805, 5324)]