19763680

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1223}}^1$

素因数の和:1339

約数の個数: 48

約数和(自身を含む): 47192544

約数和(自身を除く): 27428864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1223, 1616, 2020, 2446, 3232, 4040, 4892, 6115, 8080, 9784, 12230, 16160, 19568, 24460, 39136, 48920, 97840, 123523, 195680, 247046, 494092, 617615, 988184, 1235230, 1976368, 2470460, 3952736, 4940920, 9881840, 19763680]

約数ペア:

[(1, 19763680), (2, 9881840), (4, 4940920), (5, 3952736), (8, 2470460), (10, 1976368), (16, 1235230), (20, 988184), (32, 617615), (40, 494092), (80, 247046), (101, 195680), (160, 123523), (202, 97840), (404, 48920), (505, 39136), (808, 24460), (1010, 19568), (1223, 16160), (1616, 12230), (2020, 9784), (2446, 8080), (3232, 6115), (4040, 4892)]