20222420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12799}}^1$

素因数の和:12887

約数の個数: 24

約数和(自身を含む): 43008000

約数和(自身を除く): 22785580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12799, 25598, 51196, 63995, 127990, 255980, 1011121, 2022242, 4044484, 5055605, 10111210, 20222420]

約数ペア:

[(1, 20222420), (2, 10111210), (4, 5055605), (5, 4044484), (10, 2022242), (20, 1011121), (79, 255980), (158, 127990), (316, 63995), (395, 51196), (790, 25598), (1580, 12799)]