247375520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:395

約数の個数: 144

約数和(自身を含む): 687748320

約数和(自身を除く): 440372800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 139, 140, 160, 196, 224, 227, 245, 278, 280, 392, 454, 490, 556, 560, 695, 784, 908, 973, 980, 1112, 1120, 1135, 1390, 1568, 1589, 1816, 1946, 1960, 2224, 2270, 2780, 3178, 3632, 3892, 3920, 4448, 4540, 4865, 5560, 6356, 6811, 7264, 7784, 7840, 7945, 9080, 9730, 11120, 11123, 12712, 13622, 15568, 15890, 18160, 19460, 22240, 22246, 25424, 27244, 31136, 31553, 31780, 34055, 36320, 38920, 44492, 50848, 54488, 55615, 63106, 63560, 68110, 77840, 88984, 108976, 111230, 126212, 127120, 136220, 155680, 157765, 177968, 217952, 220871, 222460, 252424, 254240, 272440, 315530, 355936, 441742, 444920, 504848, 544880, 631060, 883484, 889840, 1009696, 1089760, 1104355, 1262120, 1546097, 1766968, 1779680, 2208710, 2524240, 3092194, 3533936, 4417420, 5048480, 6184388, 7067872, 7730485, 8834840, 12368776, 15460970, 17669680, 24737552, 30921940, 35339360, 49475104, 61843880, 123687760, 247375520]

約数ペア:

[(1, 247375520), (2, 123687760), (4, 61843880), (5, 49475104), (7, 35339360), (8, 30921940), (10, 24737552), (14, 17669680), (16, 15460970), (20, 12368776), (28, 8834840), (32, 7730485), (35, 7067872), (40, 6184388), (49, 5048480), (56, 4417420), (70, 3533936), (80, 3092194), (98, 2524240), (112, 2208710), (139, 1779680), (140, 1766968), (160, 1546097), (196, 1262120), (224, 1104355), (227, 1089760), (245, 1009696), (278, 889840), (280, 883484), (392, 631060), (454, 544880), (490, 504848), (556, 444920), (560, 441742), (695, 355936), (784, 315530), (908, 272440), (973, 254240), (980, 252424), (1112, 222460), (1120, 220871), (1135, 217952), (1390, 177968), (1568, 157765), (1589, 155680), (1816, 136220), (1946, 127120), (1960, 126212), (2224, 111230), (2270, 108976), (2780, 88984), (3178, 77840), (3632, 68110), (3892, 63560), (3920, 63106), (4448, 55615), (4540, 54488), (4865, 50848), (5560, 44492), (6356, 38920), (6811, 36320), (7264, 34055), (7784, 31780), (7840, 31553), (7945, 31136), (9080, 27244), (9730, 25424), (11120, 22246), (11123, 22240), (12712, 19460), (13622, 18160), (15568, 15890)]