20057515550

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{198491}}^1$

素因数の和:198593

約数の個数: 48

約数和(自身を含む): 38987004672

約数和(自身を除く): 18929489122

約数列:

[1, 2, 5, 10, 25, 43, 47, 50, 86, 94, 215, 235, 430, 470, 1075, 1175, 2021, 2150, 2350, 4042, 10105, 20210, 50525, 101050, 198491, 396982, 992455, 1984910, 4962275, 8535113, 9329077, 9924550, 17070226, 18658154, 42675565, 46645385, 85351130, 93290770, 213377825, 233226925, 401150311, 426755650, 466453850, 802300622, 2005751555, 4011503110, 10028757775, 20057515550]

約数ペア:

[(1, 20057515550), (2, 10028757775), (5, 4011503110), (10, 2005751555), (25, 802300622), (43, 466453850), (47, 426755650), (50, 401150311), (86, 233226925), (94, 213377825), (215, 93290770), (235, 85351130), (430, 46645385), (470, 42675565), (1075, 18658154), (1175, 17070226), (2021, 9924550), (2150, 9329077), (2350, 8535113), (4042, 4962275), (10105, 1984910), (20210, 992455), (50525, 396982), (101050, 198491)]