281099480

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149521}}^1$

素因数の和:149579

約数の個数: 32

約数和(自身を含む): 645935040

約数和(自身を除く): 364835560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 149521, 299042, 598084, 747605, 1196168, 1495210, 2990420, 5980840, 7027487, 14054974, 28109948, 35137435, 56219896, 70274870, 140549740, 281099480]

約数ペア:

[(1, 281099480), (2, 140549740), (4, 70274870), (5, 56219896), (8, 35137435), (10, 28109948), (20, 14054974), (40, 7027487), (47, 5980840), (94, 2990420), (188, 1495210), (235, 1196168), (376, 747605), (470, 598084), (940, 299042), (1880, 149521)]