18465440

素因数分解:

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

素因数の和:16509

約数の個数: 48

約数和(自身を含む): 49859712

約数和(自身を除く): 31394272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 16487, 32974, 65948, 82435, 115409, 131896, 164870, 230818, 263792, 329740, 461636, 527584, 577045, 659480, 923272, 1154090, 1318960, 1846544, 2308180, 2637920, 3693088, 4616360, 9232720, 18465440]

約数ペア:

[(1, 18465440), (2, 9232720), (4, 4616360), (5, 3693088), (7, 2637920), (8, 2308180), (10, 1846544), (14, 1318960), (16, 1154090), (20, 923272), (28, 659480), (32, 577045), (35, 527584), (40, 461636), (56, 329740), (70, 263792), (80, 230818), (112, 164870), (140, 131896), (160, 115409), (224, 82435), (280, 65948), (560, 32974), (1120, 16487)]