405118420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2893703}}^1$

素因数の和:2893719

約数の個数: 24

約数和(自身を含む): 972284544

約数和(自身を除く): 567166124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2893703, 5787406, 11574812, 14468515, 20255921, 28937030, 40511842, 57874060, 81023684, 101279605, 202559210, 405118420]

約数ペア:

[(1, 405118420), (2, 202559210), (4, 101279605), (5, 81023684), (7, 57874060), (10, 40511842), (14, 28937030), (20, 20255921), (28, 14468515), (35, 11574812), (70, 5787406), (140, 2893703)]