156921020

素因数分解:

$2^2\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{4969}}^1$

素因数の和:6557

約数の個数: 24

約数和(自身を含む): 329809200

約数和(自身を除く): 172888180

約数列:

[1, 2, 4, 5, 10, 20, 1579, 3158, 4969, 6316, 7895, 9938, 15790, 19876, 24845, 31580, 49690, 99380, 7846051, 15692102, 31384204, 39230255, 78460510, 156921020]

約数ペア:

[(1, 156921020), (2, 78460510), (4, 39230255), (5, 31384204), (10, 15692102), (20, 7846051), (1579, 99380), (3158, 49690), (4969, 31580), (6316, 24845), (7895, 19876), (9938, 15790)]