128807480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{953}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 302227200

約数和(自身を除く): 173419720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 248, 310, 436, 545, 620, 872, 953, 1090, 1240, 1906, 2180, 3379, 3812, 4360, 4765, 6758, 7624, 9530, 13516, 16895, 19060, 27032, 29543, 33790, 38120, 59086, 67580, 103877, 118172, 135160, 147715, 207754, 236344, 295430, 415508, 519385, 590860, 831016, 1038770, 1181720, 2077540, 3220187, 4155080, 6440374, 12880748, 16100935, 25761496, 32201870, 64403740, 128807480]

約数ペア:

[(1, 128807480), (2, 64403740), (4, 32201870), (5, 25761496), (8, 16100935), (10, 12880748), (20, 6440374), (31, 4155080), (40, 3220187), (62, 2077540), (109, 1181720), (124, 1038770), (155, 831016), (218, 590860), (248, 519385), (310, 415508), (436, 295430), (545, 236344), (620, 207754), (872, 147715), (953, 135160), (1090, 118172), (1240, 103877), (1906, 67580), (2180, 59086), (3379, 38120), (3812, 33790), (4360, 29543), (4765, 27032), (6758, 19060), (7624, 16895), (9530, 13516)]