31710280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1039}}^1$

素因数の和:1166

約数の個数: 64

約数和(自身を含む): 82368000

約数和(自身を除く): 50657720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 872, 1039, 1090, 1526, 2078, 2180, 3052, 3815, 4156, 4360, 5195, 6104, 7273, 7630, 8312, 10390, 14546, 15260, 20780, 29092, 30520, 36365, 41560, 58184, 72730, 113251, 145460, 226502, 290920, 453004, 566255, 792757, 906008, 1132510, 1585514, 2265020, 3171028, 3963785, 4530040, 6342056, 7927570, 15855140, 31710280]

約数ペア:

[(1, 31710280), (2, 15855140), (4, 7927570), (5, 6342056), (7, 4530040), (8, 3963785), (10, 3171028), (14, 2265020), (20, 1585514), (28, 1132510), (35, 906008), (40, 792757), (56, 566255), (70, 453004), (109, 290920), (140, 226502), (218, 145460), (280, 113251), (436, 72730), (545, 58184), (763, 41560), (872, 36365), (1039, 30520), (1090, 29092), (1526, 20780), (2078, 15260), (2180, 14546), (3052, 10390), (3815, 8312), (4156, 7630), (4360, 7273), (5195, 6104)]