12878710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{631}}^1$

素因数の和:808

約数の個数: 32

約数和(自身を含む): 25163712

約数和(自身を除く): 12285002

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 631, 785, 1262, 1570, 2041, 3155, 4082, 6310, 8203, 10205, 16406, 20410, 41015, 82030, 99067, 198134, 495335, 990670, 1287871, 2575742, 6439355, 12878710]

約数ペア:

[(1, 12878710), (2, 6439355), (5, 2575742), (10, 1287871), (13, 990670), (26, 495335), (65, 198134), (130, 99067), (157, 82030), (314, 41015), (631, 20410), (785, 16406), (1262, 10205), (1570, 8203), (2041, 6310), (3155, 4082)]