78359140

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{2417}}^1$

素因数の和:4047

約数の個数: 24

約数和(自身を含む): 164723832

約数和(自身を除く): 86364692

約数列:

[1, 2, 4, 5, 10, 20, 1621, 2417, 3242, 4834, 6484, 8105, 9668, 12085, 16210, 24170, 32420, 48340, 3917957, 7835914, 15671828, 19589785, 39179570, 78359140]

約数ペア:

[(1, 78359140), (2, 39179570), (4, 19589785), (5, 15671828), (10, 7835914), (20, 3917957), (1621, 48340), (2417, 32420), (3242, 24170), (4834, 16210), (6484, 12085), (8105, 9668)]