27878860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 61508160

約数和(自身を除く): 33629300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 677, 710, 1354, 1420, 2059, 2708, 3385, 4118, 6770, 8236, 10295, 13540, 19633, 20590, 39266, 41180, 48067, 78532, 96134, 98165, 192268, 196330, 240335, 392660, 480670, 961340, 1393943, 2787886, 5575772, 6969715, 13939430, 27878860]

約数ペア:

[(1, 27878860), (2, 13939430), (4, 6969715), (5, 5575772), (10, 2787886), (20, 1393943), (29, 961340), (58, 480670), (71, 392660), (116, 240335), (142, 196330), (145, 192268), (284, 98165), (290, 96134), (355, 78532), (580, 48067), (677, 41180), (710, 39266), (1354, 20590), (1420, 19633), (2059, 13540), (2708, 10295), (3385, 8236), (4118, 6770)]