123142880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 343874160

約数和(自身を除く): 220731280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 113, 139, 140, 160, 196, 224, 226, 245, 278, 280, 392, 452, 490, 556, 560, 565, 695, 784, 791, 904, 973, 980, 1112, 1120, 1130, 1390, 1568, 1582, 1808, 1946, 1960, 2224, 2260, 2780, 3164, 3616, 3892, 3920, 3955, 4448, 4520, 4865, 5537, 5560, 6328, 6811, 7784, 7840, 7910, 9040, 9730, 11074, 11120, 12656, 13622, 15568, 15707, 15820, 18080, 19460, 22148, 22240, 25312, 27244, 27685, 31136, 31414, 31640, 34055, 38920, 44296, 54488, 55370, 62828, 63280, 68110, 77840, 78535, 88592, 108976, 109949, 110740, 125656, 126560, 136220, 155680, 157070, 177184, 217952, 219898, 221480, 251312, 272440, 314140, 439796, 442960, 502624, 544880, 549745, 628280, 769643, 879592, 885920, 1089760, 1099490, 1256560, 1539286, 1759184, 2198980, 2513120, 3078572, 3518368, 3848215, 4397960, 6157144, 7696430, 8795920, 12314288, 15392860, 17591840, 24628576, 30785720, 61571440, 123142880]

約数ペア:

[(1, 123142880), (2, 61571440), (4, 30785720), (5, 24628576), (7, 17591840), (8, 15392860), (10, 12314288), (14, 8795920), (16, 7696430), (20, 6157144), (28, 4397960), (32, 3848215), (35, 3518368), (40, 3078572), (49, 2513120), (56, 2198980), (70, 1759184), (80, 1539286), (98, 1256560), (112, 1099490), (113, 1089760), (139, 885920), (140, 879592), (160, 769643), (196, 628280), (224, 549745), (226, 544880), (245, 502624), (278, 442960), (280, 439796), (392, 314140), (452, 272440), (490, 251312), (556, 221480), (560, 219898), (565, 217952), (695, 177184), (784, 157070), (791, 155680), (904, 136220), (973, 126560), (980, 125656), (1112, 110740), (1120, 109949), (1130, 108976), (1390, 88592), (1568, 78535), (1582, 77840), (1808, 68110), (1946, 63280), (1960, 62828), (2224, 55370), (2260, 54488), (2780, 44296), (3164, 38920), (3616, 34055), (3892, 31640), (3920, 31414), (3955, 31136), (4448, 27685), (4520, 27244), (4865, 25312), (5537, 22240), (5560, 22148), (6328, 19460), (6811, 18080), (7784, 15820), (7840, 15707), (7910, 15568), (9040, 13622), (9730, 12656), (11074, 11120)]