20644440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1933}}^1$

素因数の和:2036

約数の個数: 64

約数和(自身を含む): 62661600

約数和(自身を除く): 42017160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 120, 178, 267, 356, 445, 534, 712, 890, 1068, 1335, 1780, 1933, 2136, 2670, 3560, 3866, 5340, 5799, 7732, 9665, 10680, 11598, 15464, 19330, 23196, 28995, 38660, 46392, 57990, 77320, 115980, 172037, 231960, 344074, 516111, 688148, 860185, 1032222, 1376296, 1720370, 2064444, 2580555, 3440740, 4128888, 5161110, 6881480, 10322220, 20644440]

約数ペア:

[(1, 20644440), (2, 10322220), (3, 6881480), (4, 5161110), (5, 4128888), (6, 3440740), (8, 2580555), (10, 2064444), (12, 1720370), (15, 1376296), (20, 1032222), (24, 860185), (30, 688148), (40, 516111), (60, 344074), (89, 231960), (120, 172037), (178, 115980), (267, 77320), (356, 57990), (445, 46392), (534, 38660), (712, 28995), (890, 23196), (1068, 19330), (1335, 15464), (1780, 11598), (1933, 10680), (2136, 9665), (2670, 7732), (3560, 5799), (3866, 5340)]