26399780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{10909}}^1$

素因数の和:10940

約数の個数: 36

約数和(自身を含む): 60943260

約数和(自身を除く): 34543480

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 10909, 21818, 43636, 54545, 109090, 119999, 218180, 239998, 479996, 599995, 1199990, 1319989, 2399980, 2639978, 5279956, 6599945, 13199890, 26399780]

約数ペア:

[(1, 26399780), (2, 13199890), (4, 6599945), (5, 5279956), (10, 2639978), (11, 2399980), (20, 1319989), (22, 1199990), (44, 599995), (55, 479996), (110, 239998), (121, 218180), (220, 119999), (242, 109090), (484, 54545), (605, 43636), (1210, 21818), (2420, 10909)]