405920450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{727}}^1\times {\mathrm{859}}^1$

素因数の和:1611

約数の個数: 48

約数和(自身を含む): 815156160

約数和(自身を除く): 409235710

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 727, 859, 1454, 1718, 3635, 4295, 7270, 8590, 9451, 11167, 18175, 18902, 21475, 22334, 36350, 42950, 47255, 55835, 94510, 111670, 236275, 279175, 472550, 558350, 624493, 1248986, 3122465, 6244930, 8118409, 15612325, 16236818, 31224650, 40592045, 81184090, 202960225, 405920450]

約数ペア:

[(1, 405920450), (2, 202960225), (5, 81184090), (10, 40592045), (13, 31224650), (25, 16236818), (26, 15612325), (50, 8118409), (65, 6244930), (130, 3122465), (325, 1248986), (650, 624493), (727, 558350), (859, 472550), (1454, 279175), (1718, 236275), (3635, 111670), (4295, 94510), (7270, 55835), (8590, 47255), (9451, 42950), (11167, 36350), (18175, 22334), (18902, 21475)]