581978125

素因数分解:

$5^5\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 767200896

約数和(自身を除く): 185222771

約数列:

[1, 5, 25, 43, 61, 71, 125, 215, 305, 355, 625, 1075, 1525, 1775, 2623, 3053, 3125, 4331, 5375, 7625, 8875, 13115, 15265, 21655, 26875, 38125, 44375, 65575, 76325, 108275, 134375, 186233, 190625, 221875, 327875, 381625, 541375, 931165, 1639375, 1908125, 2706875, 4655825, 8196875, 9540625, 13534375, 23279125, 116395625, 581978125]

約数ペア:

[(1, 581978125), (5, 116395625), (25, 23279125), (43, 13534375), (61, 9540625), (71, 8196875), (125, 4655825), (215, 2706875), (305, 1908125), (355, 1639375), (625, 931165), (1075, 541375), (1525, 381625), (1775, 327875), (2623, 221875), (3053, 190625), (3125, 186233), (4331, 134375), (5375, 108275), (7625, 76325), (8875, 65575), (13115, 44375), (15265, 38125), (21655, 26875)]