40894720

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{743}}^1$

素因数の和:807

約数の個数: 72

約数和(自身を含む): 100368576

約数和(自身を除く): 59473856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 640, 688, 743, 860, 1280, 1376, 1486, 1720, 2752, 2972, 3440, 3715, 5504, 5944, 6880, 7430, 11008, 11888, 13760, 14860, 23776, 27520, 29720, 31949, 47552, 55040, 59440, 63898, 95104, 118880, 127796, 159745, 190208, 237760, 255592, 319490, 475520, 511184, 638980, 951040, 1022368, 1277960, 2044736, 2555920, 4089472, 5111840, 8178944, 10223680, 20447360, 40894720]

約数ペア:

[(1, 40894720), (2, 20447360), (4, 10223680), (5, 8178944), (8, 5111840), (10, 4089472), (16, 2555920), (20, 2044736), (32, 1277960), (40, 1022368), (43, 951040), (64, 638980), (80, 511184), (86, 475520), (128, 319490), (160, 255592), (172, 237760), (215, 190208), (256, 159745), (320, 127796), (344, 118880), (430, 95104), (640, 63898), (688, 59440), (743, 55040), (860, 47552), (1280, 31949), (1376, 29720), (1486, 27520), (1720, 23776), (2752, 14860), (2972, 13760), (3440, 11888), (3715, 11008), (5504, 7430), (5944, 6880)]