18905340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{647}}^1$

素因数の和:1146

約数の個数: 48

約数和(自身を含む): 53125632

約数和(自身を除く): 34220292

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 487, 647, 974, 1294, 1461, 1941, 1948, 2435, 2588, 2922, 3235, 3882, 4870, 5844, 6470, 7305, 7764, 9705, 9740, 12940, 14610, 19410, 29220, 38820, 315089, 630178, 945267, 1260356, 1575445, 1890534, 3150890, 3781068, 4726335, 6301780, 9452670, 18905340]

約数ペア:

[(1, 18905340), (2, 9452670), (3, 6301780), (4, 4726335), (5, 3781068), (6, 3150890), (10, 1890534), (12, 1575445), (15, 1260356), (20, 945267), (30, 630178), (60, 315089), (487, 38820), (647, 29220), (974, 19410), (1294, 14610), (1461, 12940), (1941, 9740), (1948, 9705), (2435, 7764), (2588, 7305), (2922, 6470), (3235, 5844), (3882, 4870)]