15921080

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{8123}}^1$

素因数の和:8148

約数の個数: 48

約数和(自身を含む): 41676120

約数和(自身を除く): 25755040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 8123, 16246, 32492, 40615, 56861, 64984, 81230, 113722, 162460, 227444, 284305, 324920, 398027, 454888, 568610, 796054, 1137220, 1592108, 1990135, 2274440, 3184216, 3980270, 7960540, 15921080]

約数ペア:

[(1, 15921080), (2, 7960540), (4, 3980270), (5, 3184216), (7, 2274440), (8, 1990135), (10, 1592108), (14, 1137220), (20, 796054), (28, 568610), (35, 454888), (40, 398027), (49, 324920), (56, 284305), (70, 227444), (98, 162460), (140, 113722), (196, 81230), (245, 64984), (280, 56861), (392, 40615), (490, 32492), (980, 16246), (1960, 8123)]