28713660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20807}}^1$

素因数の和:20842

約数の個数: 48

約数和(自身を含む): 83897856

約数和(自身を除く): 55184196

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 20807, 41614, 62421, 83228, 104035, 124842, 208070, 249684, 312105, 416140, 478561, 624210, 957122, 1248420, 1435683, 1914244, 2392805, 2871366, 4785610, 5742732, 7178415, 9571220, 14356830, 28713660]

約数ペア:

[(1, 28713660), (2, 14356830), (3, 9571220), (4, 7178415), (5, 5742732), (6, 4785610), (10, 2871366), (12, 2392805), (15, 1914244), (20, 1435683), (23, 1248420), (30, 957122), (46, 624210), (60, 478561), (69, 416140), (92, 312105), (115, 249684), (138, 208070), (230, 124842), (276, 104035), (345, 83228), (460, 62421), (690, 41614), (1380, 20807)]