20515800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1153

約数の個数: 96

約数和(自身を含む): 65710080

約数和(自身を除く): 45194280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 31, 40, 50, 60, 62, 75, 93, 100, 120, 124, 150, 155, 186, 200, 248, 300, 310, 372, 465, 600, 620, 744, 775, 930, 1103, 1240, 1550, 1860, 2206, 2325, 3100, 3309, 3720, 4412, 4650, 5515, 6200, 6618, 8824, 9300, 11030, 13236, 16545, 18600, 22060, 26472, 27575, 33090, 34193, 44120, 55150, 66180, 68386, 82725, 102579, 110300, 132360, 136772, 165450, 170965, 205158, 220600, 273544, 330900, 341930, 410316, 512895, 661800, 683860, 820632, 854825, 1025790, 1367720, 1709650, 2051580, 2564475, 3419300, 4103160, 5128950, 6838600, 10257900, 20515800]

約数ペア:

[(1, 20515800), (2, 10257900), (3, 6838600), (4, 5128950), (5, 4103160), (6, 3419300), (8, 2564475), (10, 2051580), (12, 1709650), (15, 1367720), (20, 1025790), (24, 854825), (25, 820632), (30, 683860), (31, 661800), (40, 512895), (50, 410316), (60, 341930), (62, 330900), (75, 273544), (93, 220600), (100, 205158), (120, 170965), (124, 165450), (150, 136772), (155, 132360), (186, 110300), (200, 102579), (248, 82725), (300, 68386), (310, 66180), (372, 55150), (465, 44120), (600, 34193), (620, 33090), (744, 27575), (775, 26472), (930, 22060), (1103, 18600), (1240, 16545), (1550, 13236), (1860, 11030), (2206, 9300), (2325, 8824), (3100, 6618), (3309, 6200), (3720, 5515), (4412, 4650)]