20717507575

素因数分解:

$5^2\times {\mathrm{83}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{593}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 26449869600

約数和(自身を除く): 5732362025

約数列:

[1, 5, 25, 83, 113, 149, 415, 565, 593, 745, 2075, 2825, 2965, 3725, 9379, 12367, 14825, 16837, 46895, 49219, 61835, 67009, 84185, 88357, 234475, 246095, 309175, 335045, 420925, 441785, 1230475, 1397471, 1675225, 2208925, 5561747, 6987355, 7333631, 9984341, 27808735, 34936775, 36668155, 49921705, 139043675, 183340775, 249608525, 828700303, 4143501515, 20717507575]

約数ペア:

[(1, 20717507575), (5, 4143501515), (25, 828700303), (83, 249608525), (113, 183340775), (149, 139043675), (415, 49921705), (565, 36668155), (593, 34936775), (745, 27808735), (2075, 9984341), (2825, 7333631), (2965, 6987355), (3725, 5561747), (9379, 2208925), (12367, 1675225), (14825, 1397471), (16837, 1230475), (46895, 441785), (49219, 420925), (61835, 335045), (67009, 309175), (84185, 246095), (88357, 234475)]