157225880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{561521}}^1$

素因数の和:561539

約数の個数: 32

約数和(自身を含む): 404295840

約数和(自身を除く): 247069960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 561521, 1123042, 2246084, 2807605, 3930647, 4492168, 5615210, 7861294, 11230420, 15722588, 19653235, 22460840, 31445176, 39306470, 78612940, 157225880]

約数ペア:

[(1, 157225880), (2, 78612940), (4, 39306470), (5, 31445176), (7, 22460840), (8, 19653235), (10, 15722588), (14, 11230420), (20, 7861294), (28, 5615210), (35, 4492168), (40, 3930647), (56, 2807605), (70, 2246084), (140, 1123042), (280, 561521)]