20189360

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5869}}^1$

素因数の和:5925

約数の個数: 40

約数和(自身を含む): 48040080

約数和(自身を除く): 27850720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5869, 11738, 23476, 29345, 46952, 58690, 93904, 117380, 234760, 252367, 469520, 504734, 1009468, 1261835, 2018936, 2523670, 4037872, 5047340, 10094680, 20189360]

約数ペア:

[(1, 20189360), (2, 10094680), (4, 5047340), (5, 4037872), (8, 2523670), (10, 2018936), (16, 1261835), (20, 1009468), (40, 504734), (43, 469520), (80, 252367), (86, 234760), (172, 117380), (215, 93904), (344, 58690), (430, 46952), (688, 29345), (860, 23476), (1720, 11738), (3440, 5869)]