18042340

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{8431}}^1$

素因数の和:8547

約数の個数: 24

約数和(自身を含む): 38247552

約数和(自身を除く): 20205212

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 8431, 16862, 33724, 42155, 84310, 168620, 902117, 1804234, 3608468, 4510585, 9021170, 18042340]

約数ペア:

[(1, 18042340), (2, 9021170), (4, 4510585), (5, 3608468), (10, 1804234), (20, 902117), (107, 168620), (214, 84310), (428, 42155), (535, 33724), (1070, 16862), (2140, 8431)]