64668790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{208609}}^1$

素因数の和:208647

約数の個数: 16

約数和(自身を含む): 120159360

約数和(自身を除く): 55490570

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 208609, 417218, 1043045, 2086090, 6466879, 12933758, 32334395, 64668790]

約数ペア:

[(1, 64668790), (2, 32334395), (5, 12933758), (10, 6466879), (31, 2086090), (62, 1043045), (155, 417218), (310, 208609)]