640489440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{1334353}}^1$

素因数の和:1334371

約数の個数: 48

約数和(自身を含む): 2017543248

約数和(自身を除く): 1377053808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 1334353, 2668706, 4003059, 5337412, 6671765, 8006118, 10674824, 13343530, 16012236, 20015295, 21349648, 26687060, 32024472, 40030590, 42699296, 53374120, 64048944, 80061180, 106748240, 128097888, 160122360, 213496480, 320244720, 640489440]

約数ペア:

[(1, 640489440), (2, 320244720), (3, 213496480), (4, 160122360), (5, 128097888), (6, 106748240), (8, 80061180), (10, 64048944), (12, 53374120), (15, 42699296), (16, 40030590), (20, 32024472), (24, 26687060), (30, 21349648), (32, 20015295), (40, 16012236), (48, 13343530), (60, 10674824), (80, 8006118), (96, 6671765), (120, 5337412), (160, 4003059), (240, 2668706), (480, 1334353)]