2017994840

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{196303}}^1$

素因数の和:196571

約数の個数: 32

約数和(自身を含む): 4558178880

約数和(自身を除く): 2540184040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 196303, 392606, 785212, 981515, 1570424, 1963030, 3926060, 7852120, 50449871, 100899742, 201799484, 252249355, 403598968, 504498710, 1008997420, 2017994840]

約数ペア:

[(1, 2017994840), (2, 1008997420), (4, 504498710), (5, 403598968), (8, 252249355), (10, 201799484), (20, 100899742), (40, 50449871), (257, 7852120), (514, 3926060), (1028, 1963030), (1285, 1570424), (2056, 981515), (2570, 785212), (5140, 392606), (10280, 196303)]