64629040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{16487}}^1$

素因数の和:16514

約数の個数: 60

約数和(自身を含む): 174805776

約数和(自身を除く): 110176736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 16487, 32974, 65948, 82435, 115409, 131896, 164870, 230818, 263792, 329740, 461636, 577045, 659480, 807863, 923272, 1154090, 1318960, 1615726, 1846544, 2308180, 3231452, 4039315, 4616360, 6462904, 8078630, 9232720, 12925808, 16157260, 32314520, 64629040]

約数ペア:

[(1, 64629040), (2, 32314520), (4, 16157260), (5, 12925808), (7, 9232720), (8, 8078630), (10, 6462904), (14, 4616360), (16, 4039315), (20, 3231452), (28, 2308180), (35, 1846544), (40, 1615726), (49, 1318960), (56, 1154090), (70, 923272), (80, 807863), (98, 659480), (112, 577045), (140, 461636), (196, 329740), (245, 263792), (280, 230818), (392, 164870), (490, 131896), (560, 115409), (784, 82435), (980, 65948), (1960, 32974), (3920, 16487)]