81830690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{3463}}^1$

素因数の和:3626

約数の個数: 32

約数和(自身を含む): 157127040

約数和(自身を除く): 75296350

約数列:

[1, 2, 5, 10, 17, 34, 85, 139, 170, 278, 695, 1390, 2363, 3463, 4726, 6926, 11815, 17315, 23630, 34630, 58871, 117742, 294355, 481357, 588710, 962714, 2406785, 4813570, 8183069, 16366138, 40915345, 81830690]

約数ペア:

[(1, 81830690), (2, 40915345), (5, 16366138), (10, 8183069), (17, 4813570), (34, 2406785), (85, 962714), (139, 588710), (170, 481357), (278, 294355), (695, 117742), (1390, 58871), (2363, 34630), (3463, 23630), (4726, 17315), (6926, 11815)]