2154780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11971}}^1$

素因数の和:11986

約数の個数: 36

約数和(自身を含む): 6536712

約数和(自身を除く): 4381932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 11971, 23942, 35913, 47884, 59855, 71826, 107739, 119710, 143652, 179565, 215478, 239420, 359130, 430956, 538695, 718260, 1077390, 2154780]

約数ペア:

[(1, 2154780), (2, 1077390), (3, 718260), (4, 538695), (5, 430956), (6, 359130), (9, 239420), (10, 215478), (12, 179565), (15, 143652), (18, 119710), (20, 107739), (30, 71826), (36, 59855), (45, 47884), (60, 35913), (90, 23942), (180, 11971)]