80088880

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5531}}^1$

素因数の和:5725

約数の個数: 40

約数和(自身を含む): 187269264

約数和(自身を除く): 107180384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 5531, 7240, 11062, 14480, 22124, 27655, 44248, 55310, 88496, 110620, 221240, 442480, 1001111, 2002222, 4004444, 5005555, 8008888, 10011110, 16017776, 20022220, 40044440, 80088880]

約数ペア:

[(1, 80088880), (2, 40044440), (4, 20022220), (5, 16017776), (8, 10011110), (10, 8008888), (16, 5005555), (20, 4004444), (40, 2002222), (80, 1001111), (181, 442480), (362, 221240), (724, 110620), (905, 88496), (1448, 55310), (1810, 44248), (2896, 27655), (3620, 22124), (5531, 14480), (7240, 11062)]