1985589040

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{406883}}^1$

素因数の和:406957

約数の個数: 40

約数和(自身を含む): 4692186288

約数和(自身を除く): 2706597248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 406883, 813766, 1627532, 2034415, 3255064, 4068830, 6510128, 8137660, 16275320, 24819863, 32550640, 49639726, 99279452, 124099315, 198558904, 248198630, 397117808, 496397260, 992794520, 1985589040]

約数ペア:

[(1, 1985589040), (2, 992794520), (4, 496397260), (5, 397117808), (8, 248198630), (10, 198558904), (16, 124099315), (20, 99279452), (40, 49639726), (61, 32550640), (80, 24819863), (122, 16275320), (244, 8137660), (305, 6510128), (488, 4068830), (610, 3255064), (976, 2034415), (1220, 1627532), (2440, 813766), (4880, 406883)]