42008020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123553}}^1$

素因数の和:123579

約数の個数: 24

約数和(自身を含む): 93406824

約数和(自身を除く): 51398804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 123553, 247106, 494212, 617765, 1235530, 2100401, 2471060, 4200802, 8401604, 10502005, 21004010, 42008020]

約数ペア:

[(1, 42008020), (2, 21004010), (4, 10502005), (5, 8401604), (10, 4200802), (17, 2471060), (20, 2100401), (34, 1235530), (68, 617765), (85, 494212), (170, 247106), (340, 123553)]