389626860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{927683}}^1$

素因数の和:927702

約数の個数: 48

約数和(自身を含む): 1246807296

約数和(自身を除く): 857180436

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, 927683, 1855366, 2783049, 3710732, 4638415, 5566098, 6493781, 9276830, 11132196, 12987562, 13915245, 18553660, 19481343, 25975124, 27830490, 32468905, 38962686, 55660980, 64937810, 77925372, 97406715, 129875620, 194813430, 389626860]

約数ペア:

[(1, 389626860), (2, 194813430), (3, 129875620), (4, 97406715), (5, 77925372), (6, 64937810), (7, 55660980), (10, 38962686), (12, 32468905), (14, 27830490), (15, 25975124), (20, 19481343), (21, 18553660), (28, 13915245), (30, 12987562), (35, 11132196), (42, 9276830), (60, 6493781), (70, 5566098), (84, 4638415), (105, 3710732), (140, 2783049), (210, 1855366), (420, 927683)]