615195625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1$

素因数の和:2155

約数の個数: 40

約数和(自身を含む): 858550176

約数和(自身を除く): 243354551

約数列:

[1, 5, 11, 25, 43, 55, 125, 215, 275, 473, 625, 1075, 1375, 2081, 2365, 5375, 6875, 10405, 11825, 22891, 26875, 52025, 59125, 89483, 114455, 260125, 295625, 447415, 572275, 984313, 1300625, 2237075, 2861375, 4921565, 11185375, 14306875, 24607825, 55926875, 123039125, 615195625]

約数ペア:

[(1, 615195625), (5, 123039125), (11, 55926875), (25, 24607825), (43, 14306875), (55, 11185375), (125, 4921565), (215, 2861375), (275, 2237075), (473, 1300625), (625, 984313), (1075, 572275), (1375, 447415), (2081, 295625), (2365, 260125), (5375, 114455), (6875, 89483), (10405, 59125), (11825, 52025), (22891, 26875)]