149727640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{52721}}^1$

素因数の和:52803

約数の個数: 32

約数和(自身を含む): 341638560

約数和(自身を除く): 191910920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 52721, 105442, 210884, 263605, 421768, 527210, 1054420, 2108840, 3743191, 7486382, 14972764, 18715955, 29945528, 37431910, 74863820, 149727640]

約数ペア:

[(1, 149727640), (2, 74863820), (4, 37431910), (5, 29945528), (8, 18715955), (10, 14972764), (20, 7486382), (40, 3743191), (71, 2108840), (142, 1054420), (284, 527210), (355, 421768), (568, 263605), (710, 210884), (1420, 105442), (2840, 52721)]