80357290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4447}}^1$

素因数の和:4606

約数の個数: 32

約数和(自身を含む): 156925440

約数和(自身を除く): 76568150

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1390, 1807, 3614, 4447, 8894, 9035, 18070, 22235, 44470, 57811, 115622, 289055, 578110, 618133, 1236266, 3090665, 6181330, 8035729, 16071458, 40178645, 80357290]

約数ペア:

[(1, 80357290), (2, 40178645), (5, 16071458), (10, 8035729), (13, 6181330), (26, 3090665), (65, 1236266), (130, 618133), (139, 578110), (278, 289055), (695, 115622), (1390, 57811), (1807, 44470), (3614, 22235), (4447, 18070), (8894, 9035)]