218531375

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 282384960

約数和(自身を除く): 63853585

約数列:

[1, 5, 25, 43, 109, 125, 215, 373, 545, 1075, 1865, 2725, 4687, 5375, 9325, 13625, 16039, 23435, 40657, 46625, 80195, 117175, 203285, 400975, 585875, 1016425, 1748251, 2004875, 5082125, 8741255, 43706275, 218531375]

約数ペア:

[(1, 218531375), (5, 43706275), (25, 8741255), (43, 5082125), (109, 2004875), (125, 1748251), (215, 1016425), (373, 585875), (545, 400975), (1075, 203285), (1865, 117175), (2725, 80195), (4687, 46625), (5375, 40657), (9325, 23435), (13625, 16039)]