639630145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1277}}^1\times {\mathrm{1301}}^1$

素因数の和:2601

約数の個数: 32

約数和(自身を含む): 958438656

約数和(自身を除く): 318808511

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 1277, 1301, 6385, 6505, 8939, 9107, 14047, 14311, 44695, 45535, 70235, 71555, 98329, 100177, 491645, 500885, 1661377, 8306885, 11629639, 18275147, 58148195, 91375735, 127926029, 639630145]

約数ペア:

[(1, 639630145), (5, 127926029), (7, 91375735), (11, 58148195), (35, 18275147), (55, 11629639), (77, 8306885), (385, 1661377), (1277, 500885), (1301, 491645), (6385, 100177), (6505, 98329), (8939, 71555), (9107, 70235), (14047, 45535), (14311, 44695)]