289827440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{517549}}^1$

素因数の和:517569

約数の個数: 40

約数和(自身を含む): 770114400

約数和(自身を除く): 480286960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 517549, 1035098, 2070196, 2587745, 3622843, 4140392, 5175490, 7245686, 8280784, 10350980, 14491372, 18114215, 20701960, 28982744, 36228430, 41403920, 57965488, 72456860, 144913720, 289827440]

約数ペア:

[(1, 289827440), (2, 144913720), (4, 72456860), (5, 57965488), (7, 41403920), (8, 36228430), (10, 28982744), (14, 20701960), (16, 18114215), (20, 14491372), (28, 10350980), (35, 8280784), (40, 7245686), (56, 5175490), (70, 4140392), (80, 3622843), (112, 2587745), (140, 2070196), (280, 1035098), (560, 517549)]