123818060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1999}}^1$

素因数の和:2190

約数の個数: 48

約数和(自身を含む): 275520000

約数和(自身を除く): 151701940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 326, 380, 652, 815, 1630, 1999, 3097, 3260, 3998, 6194, 7996, 9995, 12388, 15485, 19990, 30970, 37981, 39980, 61940, 75962, 151924, 189905, 325837, 379810, 651674, 759620, 1303348, 1629185, 3258370, 6190903, 6516740, 12381806, 24763612, 30954515, 61909030, 123818060]

約数ペア:

[(1, 123818060), (2, 61909030), (4, 30954515), (5, 24763612), (10, 12381806), (19, 6516740), (20, 6190903), (38, 3258370), (76, 1629185), (95, 1303348), (163, 759620), (190, 651674), (326, 379810), (380, 325837), (652, 189905), (815, 151924), (1630, 75962), (1999, 61940), (3097, 39980), (3260, 37981), (3998, 30970), (6194, 19990), (7996, 15485), (9995, 12388)]