40689980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65629}}^1$

素因数の和:65669

約数の個数: 24

約数和(自身を含む): 88206720

約数和(自身を除く): 47516740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 65629, 131258, 262516, 328145, 656290, 1312580, 2034499, 4068998, 8137996, 10172495, 20344990, 40689980]

約数ペア:

[(1, 40689980), (2, 20344990), (4, 10172495), (5, 8137996), (10, 4068998), (20, 2034499), (31, 1312580), (62, 656290), (124, 328145), (155, 262516), (310, 131258), (620, 65629)]