51357080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{499}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 120960000

約数和(自身を除く): 69602920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 83, 124, 155, 166, 248, 310, 332, 415, 499, 620, 664, 830, 998, 1240, 1660, 1996, 2495, 2573, 3320, 3992, 4990, 5146, 9980, 10292, 12865, 15469, 19960, 20584, 25730, 30938, 41417, 51460, 61876, 77345, 82834, 102920, 123752, 154690, 165668, 207085, 309380, 331336, 414170, 618760, 828340, 1283927, 1656680, 2567854, 5135708, 6419635, 10271416, 12839270, 25678540, 51357080]

約数ペア:

[(1, 51357080), (2, 25678540), (4, 12839270), (5, 10271416), (8, 6419635), (10, 5135708), (20, 2567854), (31, 1656680), (40, 1283927), (62, 828340), (83, 618760), (124, 414170), (155, 331336), (166, 309380), (248, 207085), (310, 165668), (332, 154690), (415, 123752), (499, 102920), (620, 82834), (664, 77345), (830, 61876), (998, 51460), (1240, 41417), (1660, 30938), (1996, 25730), (2495, 20584), (2573, 19960), (3320, 15469), (3992, 12865), (4990, 10292), (5146, 9980)]