90689000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{3943}}^1$

素因数の和:3987

約数の個数: 64

約数和(自身を含む): 221495040

約数和(自身を除く): 130806040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 184, 200, 230, 250, 460, 500, 575, 920, 1000, 1150, 2300, 2875, 3943, 4600, 5750, 7886, 11500, 15772, 19715, 23000, 31544, 39430, 78860, 90689, 98575, 157720, 181378, 197150, 362756, 394300, 453445, 492875, 725512, 788600, 906890, 985750, 1813780, 1971500, 2267225, 3627560, 3943000, 4534450, 9068900, 11336125, 18137800, 22672250, 45344500, 90689000]

約数ペア:

[(1, 90689000), (2, 45344500), (4, 22672250), (5, 18137800), (8, 11336125), (10, 9068900), (20, 4534450), (23, 3943000), (25, 3627560), (40, 2267225), (46, 1971500), (50, 1813780), (92, 985750), (100, 906890), (115, 788600), (125, 725512), (184, 492875), (200, 453445), (230, 394300), (250, 362756), (460, 197150), (500, 181378), (575, 157720), (920, 98575), (1000, 90689), (1150, 78860), (2300, 39430), (2875, 31544), (3943, 23000), (4600, 19715), (5750, 15772), (7886, 11500)]