9900420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1051}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 27924288

約数和(自身を除く): 18023868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1051, 1570, 1884, 2102, 2355, 3140, 3153, 4204, 4710, 5255, 6306, 9420, 10510, 12612, 15765, 21020, 31530, 63060, 165007, 330014, 495021, 660028, 825035, 990042, 1650070, 1980084, 2475105, 3300140, 4950210, 9900420]

約数ペア:

[(1, 9900420), (2, 4950210), (3, 3300140), (4, 2475105), (5, 1980084), (6, 1650070), (10, 990042), (12, 825035), (15, 660028), (20, 495021), (30, 330014), (60, 165007), (157, 63060), (314, 31530), (471, 21020), (628, 15765), (785, 12612), (942, 10510), (1051, 9420), (1570, 6306), (1884, 5255), (2102, 4710), (2355, 4204), (3140, 3153)]