853990420

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{111487}}^1$

素因数の和:111879

約数の個数: 24

約数和(自身を含む): 1798078464

約数和(自身を除く): 944088044

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 3830, 7660, 111487, 222974, 445948, 557435, 1114870, 2229740, 42699521, 85399042, 170798084, 213497605, 426995210, 853990420]

約数ペア:

[(1, 853990420), (2, 426995210), (4, 213497605), (5, 170798084), (10, 85399042), (20, 42699521), (383, 2229740), (766, 1114870), (1532, 557435), (1915, 445948), (3830, 222974), (7660, 111487)]