247791040

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{15803}}^1$

素因数の和:15834

約数の個数: 84

約数和(自身を含む): 686430936

約数和(自身を除く): 438639896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15680, 15803, 31606, 63212, 79015, 110621, 126424, 158030, 221242, 252848, 316060, 442484, 505696, 553105, 632120, 774347, 884968, 1011392, 1106210, 1264240, 1548694, 1769936, 2212420, 2528480, 3097388, 3539872, 3871735, 4424840, 5056960, 6194776, 7079744, 7743470, 8849680, 12389552, 15486940, 17699360, 24779104, 30973880, 35398720, 49558208, 61947760, 123895520, 247791040]

約数ペア:

[(1, 247791040), (2, 123895520), (4, 61947760), (5, 49558208), (7, 35398720), (8, 30973880), (10, 24779104), (14, 17699360), (16, 15486940), (20, 12389552), (28, 8849680), (32, 7743470), (35, 7079744), (40, 6194776), (49, 5056960), (56, 4424840), (64, 3871735), (70, 3539872), (80, 3097388), (98, 2528480), (112, 2212420), (140, 1769936), (160, 1548694), (196, 1264240), (224, 1106210), (245, 1011392), (280, 884968), (320, 774347), (392, 632120), (448, 553105), (490, 505696), (560, 442484), (784, 316060), (980, 252848), (1120, 221242), (1568, 158030), (1960, 126424), (2240, 110621), (3136, 79015), (3920, 63212), (7840, 31606), (15680, 15803)]