201719420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1440853}}^1$

素因数の和:1440869

約数の個数: 24

約数和(自身を含む): 484126944

約数和(自身を除く): 282407524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1440853, 2881706, 5763412, 7204265, 10085971, 14408530, 20171942, 28817060, 40343884, 50429855, 100859710, 201719420]

約数ペア:

[(1, 201719420), (2, 100859710), (4, 50429855), (5, 40343884), (7, 28817060), (10, 20171942), (14, 14408530), (20, 10085971), (28, 7204265), (35, 5763412), (70, 2881706), (140, 1440853)]