257045440

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47251}}^1$

素因数の和:47285

約数の個数: 56

約数和(自身を含む): 648108432

約数和(自身を除く): 391062992

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5440, 47251, 94502, 189004, 236255, 378008, 472510, 756016, 803267, 945020, 1512032, 1606534, 1890040, 3024064, 3213068, 3780080, 4016335, 6426136, 7560160, 8032670, 12852272, 15120320, 16065340, 25704544, 32130680, 51409088, 64261360, 128522720, 257045440]

約数ペア:

[(1, 257045440), (2, 128522720), (4, 64261360), (5, 51409088), (8, 32130680), (10, 25704544), (16, 16065340), (17, 15120320), (20, 12852272), (32, 8032670), (34, 7560160), (40, 6426136), (64, 4016335), (68, 3780080), (80, 3213068), (85, 3024064), (136, 1890040), (160, 1606534), (170, 1512032), (272, 945020), (320, 803267), (340, 756016), (544, 472510), (680, 378008), (1088, 236255), (1360, 189004), (2720, 94502), (5440, 47251)]