161980816

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{42359}}^1$

素因数の和:42606

約数の個数: 20

約数和(自身を含む): 315158400

約数和(自身を除く): 153177584

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 42359, 84718, 169436, 338872, 677744, 10123801, 20247602, 40495204, 80990408, 161980816]

約数ペア:

[(1, 161980816), (2, 80990408), (4, 40495204), (8, 20247602), (16, 10123801), (239, 677744), (478, 338872), (956, 169436), (1912, 84718), (3824, 42359)]