20216447980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16570859}}^1$

素因数の和:16570929

約数の個数: 24

約数和(自身を含む): 43150519440

約数和(自身を除く): 22934071460

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16570859, 33141718, 66283436, 82854295, 165708590, 331417180, 1010822399, 2021644798, 4043289596, 5054111995, 10108223990, 20216447980]

約数ペア:

[(1, 20216447980), (2, 10108223990), (4, 5054111995), (5, 4043289596), (10, 2021644798), (20, 1010822399), (61, 331417180), (122, 165708590), (244, 82854295), (305, 66283436), (610, 33141718), (1220, 16570859)]