28910960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27799}}^1$

素因数の和:27825

約数の個数: 40

約数和(自身を含む): 72391200

約数和(自身を除く): 43480240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27799, 55598, 111196, 138995, 222392, 277990, 361387, 444784, 555980, 722774, 1111960, 1445548, 1806935, 2223920, 2891096, 3613870, 5782192, 7227740, 14455480, 28910960]

約数ペア:

[(1, 28910960), (2, 14455480), (4, 7227740), (5, 5782192), (8, 3613870), (10, 2891096), (13, 2223920), (16, 1806935), (20, 1445548), (26, 1111960), (40, 722774), (52, 555980), (65, 444784), (80, 361387), (104, 277990), (130, 222392), (208, 138995), (260, 111196), (520, 55598), (1040, 27799)]