20762782625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{53017}}^1$

素因数の和:53286

約数の個数: 32

約数和(自身を含む): 28021497504

約数和(自身を除く): 7258714879

約数列:

[1, 5, 13, 25, 65, 125, 241, 325, 1205, 1625, 3133, 6025, 15665, 30125, 53017, 78325, 265085, 391625, 689221, 1325425, 3446105, 6627125, 12777097, 17230525, 63885485, 86152625, 166102261, 319427425, 830511305, 1597137125, 4152556525, 20762782625]

約数ペア:

[(1, 20762782625), (5, 4152556525), (13, 1597137125), (25, 830511305), (65, 319427425), (125, 166102261), (241, 86152625), (325, 63885485), (1205, 17230525), (1625, 12777097), (3133, 6627125), (6025, 3446105), (15665, 1325425), (30125, 689221), (53017, 391625), (78325, 265085)]