13815490840

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{400217}}^1$

素因数の和:401091

約数の個数: 32

約数和(自身を含む): 31120951680

約数和(自身を除く): 17305460840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 3452, 4315, 6904, 8630, 17260, 34520, 400217, 800434, 1600868, 2001085, 3201736, 4002170, 8004340, 16008680, 345387271, 690774542, 1381549084, 1726936355, 2763098168, 3453872710, 6907745420, 13815490840]

約数ペア:

[(1, 13815490840), (2, 6907745420), (4, 3453872710), (5, 2763098168), (8, 1726936355), (10, 1381549084), (20, 690774542), (40, 345387271), (863, 16008680), (1726, 8004340), (3452, 4002170), (4315, 3201736), (6904, 2001085), (8630, 1600868), (17260, 800434), (34520, 400217)]