64185320

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{2543}}^1$

素因数の和:3185

約数の個数: 32

約数和(自身を含む): 144702720

約数和(自身を除く): 80517400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 2543, 3155, 5048, 5086, 6310, 10172, 12620, 12715, 20344, 25240, 25430, 50860, 101720, 1604633, 3209266, 6418532, 8023165, 12837064, 16046330, 32092660, 64185320]

約数ペア:

[(1, 64185320), (2, 32092660), (4, 16046330), (5, 12837064), (8, 8023165), (10, 6418532), (20, 3209266), (40, 1604633), (631, 101720), (1262, 50860), (2524, 25430), (2543, 25240), (3155, 20344), (5048, 12715), (5086, 12620), (6310, 10172)]