81884740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{5791}}^1$

素因数の和:5908

約数の個数: 48

約数和(自身を含む): 198503424

約数和(自身を除く): 116618684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 5791, 7070, 11582, 14140, 23164, 28955, 40537, 57910, 81074, 115820, 162148, 202685, 405370, 584891, 810740, 1169782, 2339564, 2924455, 4094237, 5848910, 8188474, 11697820, 16376948, 20471185, 40942370, 81884740]

約数ペア:

[(1, 81884740), (2, 40942370), (4, 20471185), (5, 16376948), (7, 11697820), (10, 8188474), (14, 5848910), (20, 4094237), (28, 2924455), (35, 2339564), (70, 1169782), (101, 810740), (140, 584891), (202, 405370), (404, 202685), (505, 162148), (707, 115820), (1010, 81074), (1414, 57910), (2020, 40537), (2828, 28955), (3535, 23164), (5791, 14140), (7070, 11582)]