128537800

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{27943}}^1$

素因数の和:27982

約数の個数: 48

約数和(自身を含む): 311855040

約数和(自身を除く): 183317240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 184, 200, 230, 460, 575, 920, 1150, 2300, 4600, 27943, 55886, 111772, 139715, 223544, 279430, 558860, 642689, 698575, 1117720, 1285378, 1397150, 2570756, 2794300, 3213445, 5141512, 5588600, 6426890, 12853780, 16067225, 25707560, 32134450, 64268900, 128537800]

約数ペア:

[(1, 128537800), (2, 64268900), (4, 32134450), (5, 25707560), (8, 16067225), (10, 12853780), (20, 6426890), (23, 5588600), (25, 5141512), (40, 3213445), (46, 2794300), (50, 2570756), (92, 1397150), (100, 1285378), (115, 1117720), (184, 698575), (200, 642689), (230, 558860), (460, 279430), (575, 223544), (920, 139715), (1150, 111772), (2300, 55886), (4600, 27943)]