15855140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1039}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 38438400

約数和(自身を除く): 22583260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1039, 1090, 1526, 2078, 2180, 3052, 3815, 4156, 5195, 7273, 7630, 10390, 14546, 15260, 20780, 29092, 36365, 72730, 113251, 145460, 226502, 453004, 566255, 792757, 1132510, 1585514, 2265020, 3171028, 3963785, 7927570, 15855140]

約数ペア:

[(1, 15855140), (2, 7927570), (4, 3963785), (5, 3171028), (7, 2265020), (10, 1585514), (14, 1132510), (20, 792757), (28, 566255), (35, 453004), (70, 226502), (109, 145460), (140, 113251), (218, 72730), (436, 36365), (545, 29092), (763, 20780), (1039, 15260), (1090, 14546), (1526, 10390), (2078, 7630), (2180, 7273), (3052, 5195), (3815, 4156)]