123721520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{9151}}^1$

素因数の和:9190

約数の個数: 60

約数和(自身を含む): 311515776

約数和(自身を除く): 187794256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6760, 9151, 13520, 18302, 36604, 45755, 73208, 91510, 118963, 146416, 183020, 237926, 366040, 475852, 594815, 732080, 951704, 1189630, 1546519, 1903408, 2379260, 3093038, 4758520, 6186076, 7732595, 9517040, 12372152, 15465190, 24744304, 30930380, 61860760, 123721520]

約数ペア:

[(1, 123721520), (2, 61860760), (4, 30930380), (5, 24744304), (8, 15465190), (10, 12372152), (13, 9517040), (16, 7732595), (20, 6186076), (26, 4758520), (40, 3093038), (52, 2379260), (65, 1903408), (80, 1546519), (104, 1189630), (130, 951704), (169, 732080), (208, 594815), (260, 475852), (338, 366040), (520, 237926), (676, 183020), (845, 146416), (1040, 118963), (1352, 91510), (1690, 73208), (2704, 45755), (3380, 36604), (6760, 18302), (9151, 13520)]