842157875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1231}}^1$

素因数の和:1680

約数の個数: 32

約数和(自身を含む): 1135470336

約数和(自身を除く): 293312461

約数列:

[1, 5, 13, 25, 65, 125, 325, 421, 1231, 1625, 2105, 5473, 6155, 10525, 16003, 27365, 30775, 52625, 80015, 136825, 153875, 400075, 518251, 684125, 2000375, 2591255, 6737263, 12956275, 33686315, 64781375, 168431575, 842157875]

約数ペア:

[(1, 842157875), (5, 168431575), (13, 64781375), (25, 33686315), (65, 12956275), (125, 6737263), (325, 2591255), (421, 2000375), (1231, 684125), (1625, 518251), (2105, 400075), (5473, 153875), (6155, 136825), (10525, 80015), (16003, 52625), (27365, 30775)]