19264240

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2131}}^1$

素因数の和:2257

約数の個数: 40

約数和(自身を含む): 45206928

約数和(自身を除く): 25942688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2131, 2260, 4262, 4520, 8524, 9040, 10655, 17048, 21310, 34096, 42620, 85240, 170480, 240803, 481606, 963212, 1204015, 1926424, 2408030, 3852848, 4816060, 9632120, 19264240]

約数ペア:

[(1, 19264240), (2, 9632120), (4, 4816060), (5, 3852848), (8, 2408030), (10, 1926424), (16, 1204015), (20, 963212), (40, 481606), (80, 240803), (113, 170480), (226, 85240), (452, 42620), (565, 34096), (904, 21310), (1130, 17048), (1808, 10655), (2131, 9040), (2260, 8524), (4262, 4520)]