129208120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1747}}^1$

素因数の和:1844

約数の個数: 48

約数和(自身を含む): 297806760

約数和(自身を除く): 168598640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1747, 1849, 3494, 3698, 6988, 7396, 8735, 9245, 13976, 14792, 17470, 18490, 34940, 36980, 69880, 73960, 75121, 150242, 300484, 375605, 600968, 751210, 1502420, 3004840, 3230203, 6460406, 12920812, 16151015, 25841624, 32302030, 64604060, 129208120]

約数ペア:

[(1, 129208120), (2, 64604060), (4, 32302030), (5, 25841624), (8, 16151015), (10, 12920812), (20, 6460406), (40, 3230203), (43, 3004840), (86, 1502420), (172, 751210), (215, 600968), (344, 375605), (430, 300484), (860, 150242), (1720, 75121), (1747, 73960), (1849, 69880), (3494, 36980), (3698, 34940), (6988, 18490), (7396, 17470), (8735, 14792), (9245, 13976)]