400753520

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{46817}}^1$

素因数の和:46937

約数の個数: 40

約数和(自身を含む): 940479984

約数和(自身を除く): 539726464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 46817, 93634, 187268, 234085, 374536, 468170, 749072, 936340, 1872680, 3745360, 5009419, 10018838, 20037676, 25047095, 40075352, 50094190, 80150704, 100188380, 200376760, 400753520]

約数ペア:

[(1, 400753520), (2, 200376760), (4, 100188380), (5, 80150704), (8, 50094190), (10, 40075352), (16, 25047095), (20, 20037676), (40, 10018838), (80, 5009419), (107, 3745360), (214, 1872680), (428, 936340), (535, 749072), (856, 468170), (1070, 374536), (1712, 234085), (2140, 187268), (4280, 93634), (8560, 46817)]