180628020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2011}}^1$

素因数の和:2525

約数の個数: 72

約数和(自身を含む): 549276000

約数和(自身を除く): 368647980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 998, 1497, 1996, 2011, 2495, 2994, 4022, 4491, 4990, 5988, 6033, 7485, 8044, 8982, 9980, 10055, 12066, 14970, 17964, 18099, 20110, 22455, 24132, 29940, 30165, 36198, 40220, 44910, 60330, 72396, 89820, 90495, 120660, 180990, 361980, 1003489, 2006978, 3010467, 4013956, 5017445, 6020934, 9031401, 10034890, 12041868, 15052335, 18062802, 20069780, 30104670, 36125604, 45157005, 60209340, 90314010, 180628020]

約数ペア:

[(1, 180628020), (2, 90314010), (3, 60209340), (4, 45157005), (5, 36125604), (6, 30104670), (9, 20069780), (10, 18062802), (12, 15052335), (15, 12041868), (18, 10034890), (20, 9031401), (30, 6020934), (36, 5017445), (45, 4013956), (60, 3010467), (90, 2006978), (180, 1003489), (499, 361980), (998, 180990), (1497, 120660), (1996, 90495), (2011, 89820), (2495, 72396), (2994, 60330), (4022, 44910), (4491, 40220), (4990, 36198), (5988, 30165), (6033, 29940), (7485, 24132), (8044, 22455), (8982, 20110), (9980, 18099), (10055, 17964), (12066, 14970)]