15207680

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^2$

素因数の和:239

約数の個数: 54

約数和(自身を含む): 36764406

約数和(自身を除く): 21556726

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 545, 640, 872, 1090, 1280, 1744, 2180, 3488, 4360, 6976, 8720, 11881, 13952, 17440, 23762, 27904, 34880, 47524, 59405, 69760, 95048, 118810, 139520, 190096, 237620, 380192, 475240, 760384, 950480, 1520768, 1900960, 3041536, 3801920, 7603840, 15207680]

約数ペア:

[(1, 15207680), (2, 7603840), (4, 3801920), (5, 3041536), (8, 1900960), (10, 1520768), (16, 950480), (20, 760384), (32, 475240), (40, 380192), (64, 237620), (80, 190096), (109, 139520), (128, 118810), (160, 95048), (218, 69760), (256, 59405), (320, 47524), (436, 34880), (545, 27904), (640, 23762), (872, 17440), (1090, 13952), (1280, 11881), (1744, 8720), (2180, 6976), (3488, 4360)]