389637780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{927709}}^1$

素因数の和:927728

約数の個数: 48

約数和(自身を含む): 1246842240

約数和(自身を除く): 857204460

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, 927709, 1855418, 2783127, 3710836, 4638545, 5566254, 6493963, 9277090, 11132508, 12987926, 13915635, 18554180, 19481889, 25975852, 27831270, 32469815, 38963778, 55662540, 64939630, 77927556, 97409445, 129879260, 194818890, 389637780]

約数ペア:

[(1, 389637780), (2, 194818890), (3, 129879260), (4, 97409445), (5, 77927556), (6, 64939630), (7, 55662540), (10, 38963778), (12, 32469815), (14, 27831270), (15, 25975852), (20, 19481889), (21, 18554180), (28, 13915635), (30, 12987926), (35, 11132508), (42, 9277090), (60, 6493963), (70, 5566254), (84, 4638545), (105, 3710836), (140, 2783127), (210, 1855418), (420, 927709)]