12810640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2027}}^1$

素因数の和:2119

約数の個数: 40

約数和(自身を含む): 30176640

約数和(自身を除く): 17366000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2027, 3160, 4054, 6320, 8108, 10135, 16216, 20270, 32432, 40540, 81080, 160133, 162160, 320266, 640532, 800665, 1281064, 1601330, 2562128, 3202660, 6405320, 12810640]

約数ペア:

[(1, 12810640), (2, 6405320), (4, 3202660), (5, 2562128), (8, 1601330), (10, 1281064), (16, 800665), (20, 640532), (40, 320266), (79, 162160), (80, 160133), (158, 81080), (316, 40540), (395, 32432), (632, 20270), (790, 16216), (1264, 10135), (1580, 8108), (2027, 6320), (3160, 4054)]