81536240

素因数分解:

$2^4\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1181}}^1$

素因数の和:2057

約数の個数: 40

約数和(自身を含む): 189952128

約数和(自身を除く): 108415888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 863, 1181, 1726, 2362, 3452, 4315, 4724, 5905, 6904, 8630, 9448, 11810, 13808, 17260, 18896, 23620, 34520, 47240, 69040, 94480, 1019203, 2038406, 4076812, 5096015, 8153624, 10192030, 16307248, 20384060, 40768120, 81536240]

約数ペア:

[(1, 81536240), (2, 40768120), (4, 20384060), (5, 16307248), (8, 10192030), (10, 8153624), (16, 5096015), (20, 4076812), (40, 2038406), (80, 1019203), (863, 94480), (1181, 69040), (1726, 47240), (2362, 34520), (3452, 23620), (4315, 18896), (4724, 17260), (5905, 13808), (6904, 11810), (8630, 9448)]