68967980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2857}}^1$

素因数の和:2954

約数の個数: 48

約数和(自身を含む): 155566656

約数和(自身を除く): 86598676

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 71, 85, 142, 170, 284, 340, 355, 710, 1207, 1420, 2414, 2857, 4828, 5714, 6035, 11428, 12070, 14285, 24140, 28570, 48569, 57140, 97138, 194276, 202847, 242845, 405694, 485690, 811388, 971380, 1014235, 2028470, 3448399, 4056940, 6896798, 13793596, 17241995, 34483990, 68967980]

約数ペア:

[(1, 68967980), (2, 34483990), (4, 17241995), (5, 13793596), (10, 6896798), (17, 4056940), (20, 3448399), (34, 2028470), (68, 1014235), (71, 971380), (85, 811388), (142, 485690), (170, 405694), (284, 242845), (340, 202847), (355, 194276), (710, 97138), (1207, 57140), (1420, 48569), (2414, 28570), (2857, 24140), (4828, 14285), (5714, 12070), (6035, 11428)]