77881018

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{2671}}^1$

素因数の和:2973

約数の個数: 16

約数和(自身を含む): 119278080

約数和(自身を除く): 41397062

約数列:

[1, 2, 61, 122, 239, 478, 2671, 5342, 14579, 29158, 162931, 325862, 638369, 1276738, 38940509, 77881018]

約数ペア:

[(1, 77881018), (2, 38940509), (61, 1276738), (122, 638369), (239, 325862), (478, 162931), (2671, 29158), (5342, 14579)]