78013640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{26717}}^1$

素因数の和:26801

約数の個数: 32

約数和(自身を含む): 177941880

約数和(自身を除く): 99928240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 26717, 53434, 106868, 133585, 213736, 267170, 534340, 1068680, 1950341, 3900682, 7801364, 9751705, 15602728, 19503410, 39006820, 78013640]

約数ペア:

[(1, 78013640), (2, 39006820), (4, 19503410), (5, 15602728), (8, 9751705), (10, 7801364), (20, 3900682), (40, 1950341), (73, 1068680), (146, 534340), (292, 267170), (365, 213736), (584, 133585), (730, 106868), (1460, 53434), (2920, 26717)]