1990640

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:329

約数の個数: 40

約数和(自身を含む): 4687200

約数和(自身を除く): 2696560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 167, 298, 334, 596, 668, 745, 835, 1192, 1336, 1490, 1670, 2384, 2672, 2980, 3340, 5960, 6680, 11920, 13360, 24883, 49766, 99532, 124415, 199064, 248830, 398128, 497660, 995320, 1990640]

約数ペア:

[(1, 1990640), (2, 995320), (4, 497660), (5, 398128), (8, 248830), (10, 199064), (16, 124415), (20, 99532), (40, 49766), (80, 24883), (149, 13360), (167, 11920), (298, 6680), (334, 5960), (596, 3340), (668, 2980), (745, 2672), (835, 2384), (1192, 1670), (1336, 1490)]