123695820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1319}}^1$

素因数の和:1855

約数の個数: 72

約数和(自身を含む): 376215840

約数和(自身を除く): 252520020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 521, 1042, 1319, 1563, 2084, 2605, 2638, 3126, 3957, 4689, 5210, 5276, 6252, 6595, 7815, 7914, 9378, 10420, 11871, 13190, 15630, 15828, 18756, 19785, 23445, 23742, 26380, 31260, 39570, 46890, 47484, 59355, 79140, 93780, 118710, 237420, 687199, 1374398, 2061597, 2748796, 3435995, 4123194, 6184791, 6871990, 8246388, 10307985, 12369582, 13743980, 20615970, 24739164, 30923955, 41231940, 61847910, 123695820]

約数ペア:

[(1, 123695820), (2, 61847910), (3, 41231940), (4, 30923955), (5, 24739164), (6, 20615970), (9, 13743980), (10, 12369582), (12, 10307985), (15, 8246388), (18, 6871990), (20, 6184791), (30, 4123194), (36, 3435995), (45, 2748796), (60, 2061597), (90, 1374398), (180, 687199), (521, 237420), (1042, 118710), (1319, 93780), (1563, 79140), (2084, 59355), (2605, 47484), (2638, 46890), (3126, 39570), (3957, 31260), (4689, 26380), (5210, 23742), (5276, 23445), (6252, 19785), (6595, 18756), (7815, 15828), (7914, 15630), (9378, 13190), (10420, 11871)]