82905920

素因数分解:

$2^6\times 5^1\times {\mathrm{509}}^2$

素因数の和:1035

約数の個数: 42

約数和(自身を含む): 197808342

約数和(自身を除く): 114902422

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 509, 1018, 2036, 2545, 4072, 5090, 8144, 10180, 16288, 20360, 32576, 40720, 81440, 162880, 259081, 518162, 1036324, 1295405, 2072648, 2590810, 4145296, 5181620, 8290592, 10363240, 16581184, 20726480, 41452960, 82905920]

約数ペア:

[(1, 82905920), (2, 41452960), (4, 20726480), (5, 16581184), (8, 10363240), (10, 8290592), (16, 5181620), (20, 4145296), (32, 2590810), (40, 2072648), (64, 1295405), (80, 1036324), (160, 518162), (320, 259081), (509, 162880), (1018, 81440), (2036, 40720), (2545, 32576), (4072, 20360), (5090, 16288), (8144, 10180)]