640279968

素因数分解:

$2^5\times 3^1\times {\mathrm{37}}^1\times {\mathrm{180259}}^1$

素因数の和:180309

約数の個数: 48

約数和(自身を含む): 1726169760

約数和(自身を除く): 1085889792

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 48, 74, 96, 111, 148, 222, 296, 444, 592, 888, 1184, 1776, 3552, 180259, 360518, 540777, 721036, 1081554, 1442072, 2163108, 2884144, 4326216, 5768288, 6669583, 8652432, 13339166, 17304864, 20008749, 26678332, 40017498, 53356664, 80034996, 106713328, 160069992, 213426656, 320139984, 640279968]

約数ペア:

[(1, 640279968), (2, 320139984), (3, 213426656), (4, 160069992), (6, 106713328), (8, 80034996), (12, 53356664), (16, 40017498), (24, 26678332), (32, 20008749), (37, 17304864), (48, 13339166), (74, 8652432), (96, 6669583), (111, 5768288), (148, 4326216), (222, 2884144), (296, 2163108), (444, 1442072), (592, 1081554), (888, 721036), (1184, 540777), (1776, 360518), (3552, 180259)]