12811000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:601

約数の個数: 64

約数和(自身を含む): 31337280

約数和(自身を除く): 18526280

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, 557, 575, 920, 1000, 1114, 1150, 2228, 2300, 2785, 2875, 4456, 4600, 5570, 5750, 11140, 11500, 12811, 13925, 22280, 23000, 25622, 27850, 51244, 55700, 64055, 69625, 102488, 111400, 128110, 139250, 256220, 278500, 320275, 512440, 557000, 640550, 1281100, 1601375, 2562200, 3202750, 6405500, 12811000]

約数ペア:

[(1, 12811000), (2, 6405500), (4, 3202750), (5, 2562200), (8, 1601375), (10, 1281100), (20, 640550), (23, 557000), (25, 512440), (40, 320275), (46, 278500), (50, 256220), (92, 139250), (100, 128110), (115, 111400), (125, 102488), (184, 69625), (200, 64055), (230, 55700), (250, 51244), (460, 27850), (500, 25622), (557, 23000), (575, 22280), (920, 13925), (1000, 12811), (1114, 11500), (1150, 11140), (2228, 5750), (2300, 5570), (2785, 4600), (2875, 4456)]