51768760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{503}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 121927680

約数和(自身を除く): 70158920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 83, 124, 155, 166, 248, 310, 332, 415, 503, 620, 664, 830, 1006, 1240, 1660, 2012, 2515, 2573, 3320, 4024, 5030, 5146, 10060, 10292, 12865, 15593, 20120, 20584, 25730, 31186, 41749, 51460, 62372, 77965, 83498, 102920, 124744, 155930, 166996, 208745, 311860, 333992, 417490, 623720, 834980, 1294219, 1669960, 2588438, 5176876, 6471095, 10353752, 12942190, 25884380, 51768760]

約数ペア:

[(1, 51768760), (2, 25884380), (4, 12942190), (5, 10353752), (8, 6471095), (10, 5176876), (20, 2588438), (31, 1669960), (40, 1294219), (62, 834980), (83, 623720), (124, 417490), (155, 333992), (166, 311860), (248, 208745), (310, 166996), (332, 155930), (415, 124744), (503, 102920), (620, 83498), (664, 77965), (830, 62372), (1006, 51460), (1240, 41749), (1660, 31186), (2012, 25730), (2515, 20584), (2573, 20120), (3320, 15593), (4024, 12865), (5030, 10292), (5146, 10060)]