83870840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20357}}^1$

素因数の和:20471

約数の個数: 32

約数和(自身を含む): 190550880

約数和(自身を除く): 106680040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 20357, 40714, 81428, 101785, 162856, 203570, 407140, 814280, 2096771, 4193542, 8387084, 10483855, 16774168, 20967710, 41935420, 83870840]

約数ペア:

[(1, 83870840), (2, 41935420), (4, 20967710), (5, 16774168), (8, 10483855), (10, 8387084), (20, 4193542), (40, 2096771), (103, 814280), (206, 407140), (412, 203570), (515, 162856), (824, 101785), (1030, 81428), (2060, 40714), (4120, 20357)]