205979800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{349}}^1$

素因数の和:605

約数の個数: 96

約数和(自身を含む): 519498000

約数和(自身を除く): 313518200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 227, 260, 325, 349, 454, 520, 650, 698, 908, 1135, 1300, 1396, 1745, 1816, 2270, 2600, 2792, 2951, 3490, 4537, 4540, 5675, 5902, 6980, 8725, 9074, 9080, 11350, 11804, 13960, 14755, 17450, 18148, 22685, 22700, 23608, 29510, 34900, 36296, 45370, 45400, 59020, 69800, 73775, 79223, 90740, 113425, 118040, 147550, 158446, 181480, 226850, 295100, 316892, 396115, 453700, 590200, 633784, 792230, 907400, 1029899, 1584460, 1980575, 2059798, 3168920, 3961150, 4119596, 5149495, 7922300, 8239192, 10298990, 15844600, 20597980, 25747475, 41195960, 51494950, 102989900, 205979800]

約数ペア:

[(1, 205979800), (2, 102989900), (4, 51494950), (5, 41195960), (8, 25747475), (10, 20597980), (13, 15844600), (20, 10298990), (25, 8239192), (26, 7922300), (40, 5149495), (50, 4119596), (52, 3961150), (65, 3168920), (100, 2059798), (104, 1980575), (130, 1584460), (200, 1029899), (227, 907400), (260, 792230), (325, 633784), (349, 590200), (454, 453700), (520, 396115), (650, 316892), (698, 295100), (908, 226850), (1135, 181480), (1300, 158446), (1396, 147550), (1745, 118040), (1816, 113425), (2270, 90740), (2600, 79223), (2792, 73775), (2951, 69800), (3490, 59020), (4537, 45400), (4540, 45370), (5675, 36296), (5902, 34900), (6980, 29510), (8725, 23608), (9074, 22700), (9080, 22685), (11350, 18148), (11804, 17450), (13960, 14755)]