291205220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{144161}}^1$

素因数の和:144271

約数の個数: 24

約数和(自身を含む): 617590008

約数和(自身を除く): 326384788

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 144161, 288322, 576644, 720805, 1441610, 2883220, 14560261, 29120522, 58241044, 72801305, 145602610, 291205220]

約数ペア:

[(1, 291205220), (2, 145602610), (4, 72801305), (5, 58241044), (10, 29120522), (20, 14560261), (101, 2883220), (202, 1441610), (404, 720805), (505, 576644), (1010, 288322), (2020, 144161)]