56405680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{863}}^1$

素因数の和:938

約数の個数: 80

約数和(自身を含む): 141419520

約数和(自身を除く): 85013840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 430, 688, 760, 817, 860, 863, 1520, 1634, 1720, 1726, 3268, 3440, 3452, 4085, 4315, 6536, 6904, 8170, 8630, 13072, 13808, 16340, 16397, 17260, 32680, 32794, 34520, 37109, 65360, 65588, 69040, 74218, 81985, 131176, 148436, 163970, 185545, 262352, 296872, 327940, 371090, 593744, 655880, 705071, 742180, 1311760, 1410142, 1484360, 2820284, 2968720, 3525355, 5640568, 7050710, 11281136, 14101420, 28202840, 56405680]

約数ペア:

[(1, 56405680), (2, 28202840), (4, 14101420), (5, 11281136), (8, 7050710), (10, 5640568), (16, 3525355), (19, 2968720), (20, 2820284), (38, 1484360), (40, 1410142), (43, 1311760), (76, 742180), (80, 705071), (86, 655880), (95, 593744), (152, 371090), (172, 327940), (190, 296872), (215, 262352), (304, 185545), (344, 163970), (380, 148436), (430, 131176), (688, 81985), (760, 74218), (817, 69040), (860, 65588), (863, 65360), (1520, 37109), (1634, 34520), (1720, 32794), (1726, 32680), (3268, 17260), (3440, 16397), (3452, 16340), (4085, 13808), (4315, 13072), (6536, 8630), (6904, 8170)]