42178420

素因数分解:

$2^2\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{1621}}^1$

素因数の和:2931

約数の個数: 24

約数和(自身を含む): 88697448

約数和(自身を除く): 46519028

約数列:

[1, 2, 4, 5, 10, 20, 1301, 1621, 2602, 3242, 5204, 6484, 6505, 8105, 13010, 16210, 26020, 32420, 2108921, 4217842, 8435684, 10544605, 21089210, 42178420]

約数ペア:

[(1, 42178420), (2, 21089210), (4, 10544605), (5, 8435684), (10, 4217842), (20, 2108921), (1301, 32420), (1621, 26020), (2602, 16210), (3242, 13010), (5204, 8105), (6484, 6505)]