8909952640

素因数分解:

$2^7\times 5^1\times {\mathrm{13921801}}^1$

素因数の和:13921820

約数の個数: 32

約数和(自身を含む): 21300357060

約数和(自身を除く): 12390404420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 13921801, 27843602, 55687204, 69609005, 111374408, 139218010, 222748816, 278436020, 445497632, 556872040, 890995264, 1113744080, 1781990528, 2227488160, 4454976320, 8909952640]

約数ペア:

[(1, 8909952640), (2, 4454976320), (4, 2227488160), (5, 1781990528), (8, 1113744080), (10, 890995264), (16, 556872040), (20, 445497632), (32, 278436020), (40, 222748816), (64, 139218010), (80, 111374408), (128, 69609005), (160, 55687204), (320, 27843602), (640, 13921801)]