86171980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{253447}}^1$

素因数の和:253473

約数の個数: 24

約数和(自身を含む): 191606688

約数和(自身を除く): 105434708

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 253447, 506894, 1013788, 1267235, 2534470, 4308599, 5068940, 8617198, 17234396, 21542995, 43085990, 86171980]

約数ペア:

[(1, 86171980), (2, 43085990), (4, 21542995), (5, 17234396), (10, 8617198), (17, 5068940), (20, 4308599), (34, 2534470), (68, 1267235), (85, 1013788), (170, 506894), (340, 253447)]