157220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1123}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 377664

約数和(自身を除く): 220444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1123, 2246, 4492, 5615, 7861, 11230, 15722, 22460, 31444, 39305, 78610, 157220]

約数ペア:

[(1, 157220), (2, 78610), (4, 39305), (5, 31444), (7, 22460), (10, 15722), (14, 11230), (20, 7861), (28, 5615), (35, 4492), (70, 2246), (140, 1123)]