1288409960

素因数分解:

$2^3\times 5^1\times {\mathrm{701}}^1\times {\mathrm{45949}}^1$

素因数の和:46661

約数の個数: 32

約数和(自身を含む): 2903121000

約数和(自身を除く): 1614711040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 701, 1402, 2804, 3505, 5608, 7010, 14020, 28040, 45949, 91898, 183796, 229745, 367592, 459490, 918980, 1837960, 32210249, 64420498, 128840996, 161051245, 257681992, 322102490, 644204980, 1288409960]

約数ペア:

[(1, 1288409960), (2, 644204980), (4, 322102490), (5, 257681992), (8, 161051245), (10, 128840996), (20, 64420498), (40, 32210249), (701, 1837960), (1402, 918980), (2804, 459490), (3505, 367592), (5608, 229745), (7010, 183796), (14020, 91898), (28040, 45949)]