178723870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{2221}}^1$

素因数の和:2860

約数の個数: 32

約数和(自身を含む): 347165280

約数和(自身を除く): 168441410

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 619, 1238, 2221, 3095, 4442, 6190, 8047, 11105, 16094, 22210, 28873, 40235, 57746, 80470, 144365, 288730, 1374799, 2749598, 6873995, 13747990, 17872387, 35744774, 89361935, 178723870]

約数ペア:

[(1, 178723870), (2, 89361935), (5, 35744774), (10, 17872387), (13, 13747990), (26, 6873995), (65, 2749598), (130, 1374799), (619, 288730), (1238, 144365), (2221, 80470), (3095, 57746), (4442, 40235), (6190, 28873), (8047, 22210), (11105, 16094)]