645426

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{1559}}^1$

素因数の和:1590

約数の個数: 24

約数和(自身を含む): 1460160

約数和(自身を除く): 814734

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 1559, 3118, 4677, 9354, 14031, 28062, 35857, 71714, 107571, 215142, 322713, 645426]

約数ペア:

[(1, 645426), (2, 322713), (3, 215142), (6, 107571), (9, 71714), (18, 35857), (23, 28062), (46, 14031), (69, 9354), (138, 4677), (207, 3118), (414, 1559)]