20129168

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40583}}^1$

素因数の和:40622

約数の個数: 20

約数和(自身を含む): 40259328

約数和(自身を除く): 20130160

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40583, 81166, 162332, 324664, 649328, 1258073, 2516146, 5032292, 10064584, 20129168]

約数ペア:

[(1, 20129168), (2, 10064584), (4, 5032292), (8, 2516146), (16, 1258073), (31, 649328), (62, 324664), (124, 162332), (248, 81166), (496, 40583)]