678803418

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{1723}}^1$

素因数の和:2283

約数の個数: 48

約数和(自身を含む): 1508775840

約数和(自身を除く): 829972422

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 509, 774, 1018, 1527, 1723, 3054, 3446, 4581, 5169, 9162, 10338, 15507, 21887, 31014, 43774, 65661, 74089, 131322, 148178, 196983, 222267, 393966, 444534, 666801, 877007, 1333602, 1754014, 2631021, 5262042, 7893063, 15786126, 37711301, 75422602, 113133903, 226267806, 339401709, 678803418]

約数ペア:

[(1, 678803418), (2, 339401709), (3, 226267806), (6, 113133903), (9, 75422602), (18, 37711301), (43, 15786126), (86, 7893063), (129, 5262042), (258, 2631021), (387, 1754014), (509, 1333602), (774, 877007), (1018, 666801), (1527, 444534), (1723, 393966), (3054, 222267), (3446, 196983), (4581, 148178), (5169, 131322), (9162, 74089), (10338, 65661), (15507, 43774), (21887, 31014)]