208730120

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{4783}}^1$

素因数の和:5885

約数の個数: 32

約数和(自身を含む): 470171520

約数和(自身を除く): 261441400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 2182, 4364, 4783, 5455, 8728, 9566, 10910, 19132, 21820, 23915, 38264, 43640, 47830, 95660, 191320, 5218253, 10436506, 20873012, 26091265, 41746024, 52182530, 104365060, 208730120]

約数ペア:

[(1, 208730120), (2, 104365060), (4, 52182530), (5, 41746024), (8, 26091265), (10, 20873012), (20, 10436506), (40, 5218253), (1091, 191320), (2182, 95660), (4364, 47830), (4783, 43640), (5455, 38264), (8728, 23915), (9566, 21820), (10910, 19132)]