639400848

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{360023}}^1$

素因数の和:360071

約数の個数: 40

約数和(自身を含む): 1696433088

約数和(自身を除く): 1057032240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 360023, 720046, 1080069, 1440092, 2160138, 2880184, 4320276, 5760368, 8640552, 13320851, 17281104, 26641702, 39962553, 53283404, 79925106, 106566808, 159850212, 213133616, 319700424, 639400848]

約数ペア:

[(1, 639400848), (2, 319700424), (3, 213133616), (4, 159850212), (6, 106566808), (8, 79925106), (12, 53283404), (16, 39962553), (24, 26641702), (37, 17281104), (48, 13320851), (74, 8640552), (111, 5760368), (148, 4320276), (222, 2880184), (296, 2160138), (444, 1440092), (592, 1080069), (888, 720046), (1776, 360023)]