79997880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{666649}}^1$

素因数の和:666663

約数の個数: 32

約数和(自身を含む): 239994000

約数和(自身を除く): 159996120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 666649, 1333298, 1999947, 2666596, 3333245, 3999894, 5333192, 6666490, 7999788, 9999735, 13332980, 15999576, 19999470, 26665960, 39998940, 79997880]

約数ペア:

[(1, 79997880), (2, 39998940), (3, 26665960), (4, 19999470), (5, 15999576), (6, 13332980), (8, 9999735), (10, 7999788), (12, 6666490), (15, 5333192), (20, 3999894), (24, 3333245), (30, 2666596), (40, 1999947), (60, 1333298), (120, 666649)]