128957355

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 229806720

約数和(自身を除く): 100849365

約数列:

[1, 3, 5, 9, 15, 45, 61, 109, 183, 305, 327, 431, 545, 549, 915, 981, 1293, 1635, 2155, 2745, 3879, 4905, 6465, 6649, 19395, 19947, 26291, 33245, 46979, 59841, 78873, 99735, 131455, 140937, 234895, 236619, 299205, 394365, 422811, 704685, 1183095, 2114055, 2865719, 8597157, 14328595, 25791471, 42985785, 128957355]

約数ペア:

[(1, 128957355), (3, 42985785), (5, 25791471), (9, 14328595), (15, 8597157), (45, 2865719), (61, 2114055), (109, 1183095), (183, 704685), (305, 422811), (327, 394365), (431, 299205), (545, 236619), (549, 234895), (915, 140937), (981, 131455), (1293, 99735), (1635, 78873), (2155, 59841), (2745, 46979), (3879, 33245), (4905, 26291), (6465, 19947), (6649, 19395)]