165162640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23197}}^1$

素因数の和:23299

約数の個数: 40

約数和(自身を含む): 388334520

約数和(自身を除く): 223171880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 23197, 46394, 92788, 115985, 185576, 231970, 371152, 463940, 927880, 1855760, 2064533, 4129066, 8258132, 10322665, 16516264, 20645330, 33032528, 41290660, 82581320, 165162640]

約数ペア:

[(1, 165162640), (2, 82581320), (4, 41290660), (5, 33032528), (8, 20645330), (10, 16516264), (16, 10322665), (20, 8258132), (40, 4129066), (80, 2064533), (89, 1855760), (178, 927880), (356, 463940), (445, 371152), (712, 231970), (890, 185576), (1424, 115985), (1780, 92788), (3560, 46394), (7120, 23197)]