25217380

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 54754560

約数和(自身を除く): 29537180

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 139, 188, 193, 235, 278, 386, 470, 556, 695, 772, 940, 965, 1390, 1930, 2780, 3860, 6533, 9071, 13066, 18142, 26132, 26827, 32665, 36284, 45355, 53654, 65330, 90710, 107308, 130660, 134135, 181420, 268270, 536540, 1260869, 2521738, 5043476, 6304345, 12608690, 25217380]

約数ペア:

[(1, 25217380), (2, 12608690), (4, 6304345), (5, 5043476), (10, 2521738), (20, 1260869), (47, 536540), (94, 268270), (139, 181420), (188, 134135), (193, 130660), (235, 107308), (278, 90710), (386, 65330), (470, 53654), (556, 45355), (695, 36284), (772, 32665), (940, 26827), (965, 26132), (1390, 18142), (1930, 13066), (2780, 9071), (3860, 6533)]