16640560

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2633}}^1$

素因数の和:2725

約数の個数: 40

約数和(自身を含む): 39193920

約数和(自身を除く): 22553360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2633, 3160, 5266, 6320, 10532, 13165, 21064, 26330, 42128, 52660, 105320, 208007, 210640, 416014, 832028, 1040035, 1664056, 2080070, 3328112, 4160140, 8320280, 16640560]

約数ペア:

[(1, 16640560), (2, 8320280), (4, 4160140), (5, 3328112), (8, 2080070), (10, 1664056), (16, 1040035), (20, 832028), (40, 416014), (79, 210640), (80, 208007), (158, 105320), (316, 52660), (395, 42128), (632, 26330), (790, 21064), (1264, 13165), (1580, 10532), (2633, 6320), (3160, 5266)]