19995960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{593}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 60302880

約数和(自身を除く): 40306920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 281, 562, 593, 843, 1124, 1186, 1405, 1686, 1779, 2248, 2372, 2810, 2965, 3372, 3558, 4215, 4744, 5620, 5930, 6744, 7116, 8430, 8895, 11240, 11860, 14232, 16860, 17790, 23720, 33720, 35580, 71160, 166633, 333266, 499899, 666532, 833165, 999798, 1333064, 1666330, 1999596, 2499495, 3332660, 3999192, 4998990, 6665320, 9997980, 19995960]

約数ペア:

[(1, 19995960), (2, 9997980), (3, 6665320), (4, 4998990), (5, 3999192), (6, 3332660), (8, 2499495), (10, 1999596), (12, 1666330), (15, 1333064), (20, 999798), (24, 833165), (30, 666532), (40, 499899), (60, 333266), (120, 166633), (281, 71160), (562, 35580), (593, 33720), (843, 23720), (1124, 17790), (1186, 16860), (1405, 14232), (1686, 11860), (1779, 11240), (2248, 8895), (2372, 8430), (2810, 7116), (2965, 6744), (3372, 5930), (3558, 5620), (4215, 4744)]