64739350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{727}}^1$

素因数の和:889

約数の個数: 48

約数和(自身を含む): 130804128

約数和(自身を除く): 66064778

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 137, 274, 325, 650, 685, 727, 1370, 1454, 1781, 3425, 3562, 3635, 6850, 7270, 8905, 9451, 17810, 18175, 18902, 36350, 44525, 47255, 89050, 94510, 99599, 199198, 236275, 472550, 497995, 995990, 1294787, 2489975, 2589574, 4979950, 6473935, 12947870, 32369675, 64739350]

約数ペア:

[(1, 64739350), (2, 32369675), (5, 12947870), (10, 6473935), (13, 4979950), (25, 2589574), (26, 2489975), (50, 1294787), (65, 995990), (130, 497995), (137, 472550), (274, 236275), (325, 199198), (650, 99599), (685, 94510), (727, 89050), (1370, 47255), (1454, 44525), (1781, 36350), (3425, 18902), (3562, 18175), (3635, 17810), (6850, 9451), (7270, 8905)]