399018815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1871}}^1$

素因数の和:2099

約数の個数: 32

約数和(自身を含む): 549110016

約数和(自身を除く): 150091201

約数列:

[1, 5, 13, 17, 65, 85, 193, 221, 965, 1105, 1871, 2509, 3281, 9355, 12545, 16405, 24323, 31807, 42653, 121615, 159035, 213265, 361103, 413491, 1805515, 2067455, 4694339, 6138751, 23471695, 30693755, 79803763, 399018815]

約数ペア:

[(1, 399018815), (5, 79803763), (13, 30693755), (17, 23471695), (65, 6138751), (85, 4694339), (193, 2067455), (221, 1805515), (965, 413491), (1105, 361103), (1871, 213265), (2509, 159035), (3281, 121615), (9355, 42653), (12545, 31807), (16405, 24323)]