18888180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7321}}^1$

素因数の和:7376

約数の個数: 48

約数和(自身を含む): 54124224

約数和(自身を除く): 35236044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7321, 14642, 21963, 29284, 36605, 43926, 73210, 87852, 109815, 146420, 219630, 314803, 439260, 629606, 944409, 1259212, 1574015, 1888818, 3148030, 3777636, 4722045, 6296060, 9444090, 18888180]

約数ペア:

[(1, 18888180), (2, 9444090), (3, 6296060), (4, 4722045), (5, 3777636), (6, 3148030), (10, 1888818), (12, 1574015), (15, 1259212), (20, 944409), (30, 629606), (43, 439260), (60, 314803), (86, 219630), (129, 146420), (172, 109815), (215, 87852), (258, 73210), (430, 43926), (516, 36605), (645, 29284), (860, 21963), (1290, 14642), (2580, 7321)]