28715440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27611}}^1$

素因数の和:27637

約数の個数: 40

約数和(自身を含む): 71901648

約数和(自身を除く): 43186208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27611, 55222, 110444, 138055, 220888, 276110, 358943, 441776, 552220, 717886, 1104440, 1435772, 1794715, 2208880, 2871544, 3589430, 5743088, 7178860, 14357720, 28715440]

約数ペア:

[(1, 28715440), (2, 14357720), (4, 7178860), (5, 5743088), (8, 3589430), (10, 2871544), (13, 2208880), (16, 1794715), (20, 1435772), (26, 1104440), (40, 717886), (52, 552220), (65, 441776), (80, 358943), (104, 276110), (130, 220888), (208, 138055), (260, 110444), (520, 55222), (1040, 27611)]