81269630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{2377}}^1$

素因数の和:2660

約数の個数: 32

約数和(自身を含む): 158203584

約数和(自身を除く): 76933954

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 263, 526, 1315, 2377, 2630, 3419, 4754, 6838, 11885, 17095, 23770, 30901, 34190, 61802, 154505, 309010, 625151, 1250302, 3125755, 6251510, 8126963, 16253926, 40634815, 81269630]

約数ペア:

[(1, 81269630), (2, 40634815), (5, 16253926), (10, 8126963), (13, 6251510), (26, 3125755), (65, 1250302), (130, 625151), (263, 309010), (526, 154505), (1315, 61802), (2377, 34190), (2630, 30901), (3419, 23770), (4754, 17095), (6838, 11885)]