198429700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1103}}^1$

素因数の和:1381

約数の個数: 72

約数和(自身を含む): 494468352

約数和(自身を除く): 296038652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 257, 350, 514, 700, 1028, 1103, 1285, 1799, 2206, 2570, 3598, 4412, 5140, 5515, 6425, 7196, 7721, 8995, 11030, 12850, 15442, 17990, 22060, 25700, 27575, 30884, 35980, 38605, 44975, 55150, 77210, 89950, 110300, 154420, 179900, 193025, 283471, 386050, 566942, 772100, 1133884, 1417355, 1984297, 2834710, 3968594, 5669420, 7086775, 7937188, 9921485, 14173550, 19842970, 28347100, 39685940, 49607425, 99214850, 198429700]

約数ペア:

[(1, 198429700), (2, 99214850), (4, 49607425), (5, 39685940), (7, 28347100), (10, 19842970), (14, 14173550), (20, 9921485), (25, 7937188), (28, 7086775), (35, 5669420), (50, 3968594), (70, 2834710), (100, 1984297), (140, 1417355), (175, 1133884), (257, 772100), (350, 566942), (514, 386050), (700, 283471), (1028, 193025), (1103, 179900), (1285, 154420), (1799, 110300), (2206, 89950), (2570, 77210), (3598, 55150), (4412, 44975), (5140, 38605), (5515, 35980), (6425, 30884), (7196, 27575), (7721, 25700), (8995, 22060), (11030, 17990), (12850, 15442)]