686826860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2020079}}^1$

素因数の和:2020105

約数の個数: 24

約数和(自身を含む): 1527180480

約数和(自身を除く): 840353620

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2020079, 4040158, 8080316, 10100395, 20200790, 34341343, 40401580, 68682686, 137365372, 171706715, 343413430, 686826860]

約数ペア:

[(1, 686826860), (2, 343413430), (4, 171706715), (5, 137365372), (10, 68682686), (17, 40401580), (20, 34341343), (34, 20200790), (68, 10100395), (85, 8080316), (170, 4040158), (340, 2020079)]