818702990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{131413}}^1$

素因数の和:131516

約数の個数: 32

約数和(自身を含む): 1703125440

約数和(自身を除く): 884422450

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 6230, 131413, 262826, 657065, 919891, 1314130, 1839782, 4599455, 9198910, 11695757, 23391514, 58478785, 81870299, 116957570, 163740598, 409351495, 818702990]

約数ペア:

[(1, 818702990), (2, 409351495), (5, 163740598), (7, 116957570), (10, 81870299), (14, 58478785), (35, 23391514), (70, 11695757), (89, 9198910), (178, 4599455), (445, 1839782), (623, 1314130), (890, 919891), (1246, 657065), (3115, 262826), (6230, 131413)]