18800890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1901}}^1$

素因数の和:1974

約数の個数: 32

約数和(自身を含む): 36153216

約数和(自身を除く): 17352326

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1901, 1978, 3802, 4945, 9505, 9890, 19010, 43723, 81743, 87446, 163486, 218615, 408715, 437230, 817430, 1880089, 3760178, 9400445, 18800890]

約数ペア:

[(1, 18800890), (2, 9400445), (5, 3760178), (10, 1880089), (23, 817430), (43, 437230), (46, 408715), (86, 218615), (115, 163486), (215, 87446), (230, 81743), (430, 43723), (989, 19010), (1901, 9890), (1978, 9505), (3802, 4945)]