91420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{653}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 219744

約数和(自身を除く): 128324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 653, 1306, 2612, 3265, 4571, 6530, 9142, 13060, 18284, 22855, 45710, 91420]

約数ペア:

[(1, 91420), (2, 45710), (4, 22855), (5, 18284), (7, 13060), (10, 9142), (14, 6530), (20, 4571), (28, 3265), (35, 2612), (70, 1306), (140, 653)]