28231980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67219}}^1$

素因数の和:67238

約数の個数: 48

約数和(自身を含む): 90343680

約数和(自身を除く): 62111700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67219, 134438, 201657, 268876, 336095, 403314, 470533, 672190, 806628, 941066, 1008285, 1344380, 1411599, 1882132, 2016570, 2352665, 2823198, 4033140, 4705330, 5646396, 7057995, 9410660, 14115990, 28231980]

約数ペア:

[(1, 28231980), (2, 14115990), (3, 9410660), (4, 7057995), (5, 5646396), (6, 4705330), (7, 4033140), (10, 2823198), (12, 2352665), (14, 2016570), (15, 1882132), (20, 1411599), (21, 1344380), (28, 1008285), (30, 941066), (35, 806628), (42, 672190), (60, 470533), (70, 403314), (84, 336095), (105, 268876), (140, 201657), (210, 134438), (420, 67219)]