123231920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{220057}}^1$

素因数の和:220077

約数の個数: 40

約数和(自身を含む): 327446304

約数和(自身を除く): 204214384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 220057, 440114, 880228, 1100285, 1540399, 1760456, 2200570, 3080798, 3520912, 4401140, 6161596, 7701995, 8802280, 12323192, 15403990, 17604560, 24646384, 30807980, 61615960, 123231920]

約数ペア:

[(1, 123231920), (2, 61615960), (4, 30807980), (5, 24646384), (7, 17604560), (8, 15403990), (10, 12323192), (14, 8802280), (16, 7701995), (20, 6161596), (28, 4401140), (35, 3520912), (40, 3080798), (56, 2200570), (70, 1760456), (80, 1540399), (112, 1100285), (140, 880228), (280, 440114), (560, 220057)]