393755780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{162709}}^1$

素因数の和:162740

約数の個数: 36

約数和(自身を含む): 908898060

約数和(自身を除く): 515142280

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 162709, 325418, 650836, 813545, 1627090, 1789799, 3254180, 3579598, 7159196, 8948995, 17897990, 19687789, 35795980, 39375578, 78751156, 98438945, 196877890, 393755780]

約数ペア:

[(1, 393755780), (2, 196877890), (4, 98438945), (5, 78751156), (10, 39375578), (11, 35795980), (20, 19687789), (22, 17897990), (44, 8948995), (55, 7159196), (110, 3579598), (121, 3254180), (220, 1789799), (242, 1627090), (484, 813545), (605, 650836), (1210, 325418), (2420, 162709)]