81290060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131113}}^1$

素因数の和:131153

約数の個数: 24

約数和(自身を含む): 176217216

約数和(自身を除く): 94927156

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 131113, 262226, 524452, 655565, 1311130, 2622260, 4064503, 8129006, 16258012, 20322515, 40645030, 81290060]

約数ペア:

[(1, 81290060), (2, 40645030), (4, 20322515), (5, 16258012), (10, 8129006), (20, 4064503), (31, 2622260), (62, 1311130), (124, 655565), (155, 524452), (310, 262226), (620, 131113)]