72065800

素因数分解:

$2^3\times 5^2\times {\mathrm{409}}^1\times {\mathrm{881}}^1$

素因数の和:1306

約数の個数: 48

約数和(自身を含む): 168153300

約数和(自身を除く): 96087500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 409, 818, 881, 1636, 1762, 2045, 3272, 3524, 4090, 4405, 7048, 8180, 8810, 10225, 16360, 17620, 20450, 22025, 35240, 40900, 44050, 81800, 88100, 176200, 360329, 720658, 1441316, 1801645, 2882632, 3603290, 7206580, 9008225, 14413160, 18016450, 36032900, 72065800]

約数ペア:

[(1, 72065800), (2, 36032900), (4, 18016450), (5, 14413160), (8, 9008225), (10, 7206580), (20, 3603290), (25, 2882632), (40, 1801645), (50, 1441316), (100, 720658), (200, 360329), (409, 176200), (818, 88100), (881, 81800), (1636, 44050), (1762, 40900), (2045, 35240), (3272, 22025), (3524, 20450), (4090, 17620), (4405, 16360), (7048, 10225), (8180, 8810)]