18961250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1$

素因数の和:237

約数の個数: 80

約数和(自身を含む): 44535744

約数和(自身を除く): 25574494

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 125, 154, 175, 197, 250, 275, 350, 385, 394, 550, 625, 770, 875, 985, 1250, 1375, 1379, 1750, 1925, 1970, 2167, 2750, 2758, 3850, 4334, 4375, 4925, 6875, 6895, 8750, 9625, 9850, 10835, 13750, 13790, 15169, 19250, 21670, 24625, 30338, 34475, 48125, 49250, 54175, 68950, 75845, 96250, 108350, 123125, 151690, 172375, 246250, 270875, 344750, 379225, 541750, 758450, 861875, 1354375, 1723750, 1896125, 2708750, 3792250, 9480625, 18961250]

約数ペア:

[(1, 18961250), (2, 9480625), (5, 3792250), (7, 2708750), (10, 1896125), (11, 1723750), (14, 1354375), (22, 861875), (25, 758450), (35, 541750), (50, 379225), (55, 344750), (70, 270875), (77, 246250), (110, 172375), (125, 151690), (154, 123125), (175, 108350), (197, 96250), (250, 75845), (275, 68950), (350, 54175), (385, 49250), (394, 48125), (550, 34475), (625, 30338), (770, 24625), (875, 21670), (985, 19250), (1250, 15169), (1375, 13790), (1379, 13750), (1750, 10835), (1925, 9850), (1970, 9625), (2167, 8750), (2750, 6895), (2758, 6875), (3850, 4925), (4334, 4375)]