20802730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9413}}^1$

素因数の和:9450

約数の個数: 32

約数和(自身を含む): 42701904

約数和(自身を除く): 21899174

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9413, 18826, 47065, 94130, 122369, 160021, 244738, 320042, 611845, 800105, 1223690, 1600210, 2080273, 4160546, 10401365, 20802730]

約数ペア:

[(1, 20802730), (2, 10401365), (5, 4160546), (10, 2080273), (13, 1600210), (17, 1223690), (26, 800105), (34, 611845), (65, 320042), (85, 244738), (130, 160021), (170, 122369), (221, 94130), (442, 47065), (1105, 18826), (2210, 9413)]