18749860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11867}}^1$

素因数の和:11955

約数の個数: 24

約数和(自身を含む): 39876480

約数和(自身を除く): 21126620

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11867, 23734, 47468, 59335, 118670, 237340, 937493, 1874986, 3749972, 4687465, 9374930, 18749860]

約数ペア:

[(1, 18749860), (2, 9374930), (4, 4687465), (5, 3749972), (10, 1874986), (20, 937493), (79, 237340), (158, 118670), (316, 59335), (395, 47468), (790, 23734), (1580, 11867)]