61408280

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19433}}^1$

素因数の和:19523

約数の個数: 32

約数和(自身を含む): 139924800

約数和(自身を除く): 78516520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 19433, 38866, 77732, 97165, 155464, 194330, 388660, 777320, 1535207, 3070414, 6140828, 7676035, 12281656, 15352070, 30704140, 61408280]

約数ペア:

[(1, 61408280), (2, 30704140), (4, 15352070), (5, 12281656), (8, 7676035), (10, 6140828), (20, 3070414), (40, 1535207), (79, 777320), (158, 388660), (316, 194330), (395, 155464), (632, 97165), (790, 77732), (1580, 38866), (3160, 19433)]