28670480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8741}}^1$

素因数の和:8795

約数の個数: 40

約数和(自身を含む): 68292504

約数和(自身を除く): 39622024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8741, 17482, 34964, 43705, 69928, 87410, 139856, 174820, 349640, 358381, 699280, 716762, 1433524, 1791905, 2867048, 3583810, 5734096, 7167620, 14335240, 28670480]

約数ペア:

[(1, 28670480), (2, 14335240), (4, 7167620), (5, 5734096), (8, 3583810), (10, 2867048), (16, 1791905), (20, 1433524), (40, 716762), (41, 699280), (80, 358381), (82, 349640), (164, 174820), (205, 139856), (328, 87410), (410, 69928), (656, 43705), (820, 34964), (1640, 17482), (3280, 8741)]