123131120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:439

約数の個数: 120

約数和(自身を含む): 337398048

約数和(自身を除く): 214266928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 101, 112, 140, 196, 202, 245, 280, 311, 392, 404, 490, 505, 560, 622, 707, 784, 808, 980, 1010, 1244, 1414, 1555, 1616, 1960, 2020, 2177, 2488, 2828, 3110, 3535, 3920, 4040, 4354, 4949, 4976, 5656, 6220, 7070, 8080, 8708, 9898, 10885, 11312, 12440, 14140, 15239, 17416, 19796, 21770, 24745, 24880, 28280, 30478, 31411, 34832, 39592, 43540, 49490, 56560, 60956, 62822, 76195, 79184, 87080, 98980, 121912, 125644, 152390, 157055, 174160, 197960, 219877, 243824, 251288, 304780, 314110, 395920, 439754, 502576, 609560, 628220, 879508, 1099385, 1219120, 1256440, 1539139, 1759016, 2198770, 2512880, 3078278, 3518032, 4397540, 6156556, 7695695, 8795080, 12313112, 15391390, 17590160, 24626224, 30782780, 61565560, 123131120]

約数ペア:

[(1, 123131120), (2, 61565560), (4, 30782780), (5, 24626224), (7, 17590160), (8, 15391390), (10, 12313112), (14, 8795080), (16, 7695695), (20, 6156556), (28, 4397540), (35, 3518032), (40, 3078278), (49, 2512880), (56, 2198770), (70, 1759016), (80, 1539139), (98, 1256440), (101, 1219120), (112, 1099385), (140, 879508), (196, 628220), (202, 609560), (245, 502576), (280, 439754), (311, 395920), (392, 314110), (404, 304780), (490, 251288), (505, 243824), (560, 219877), (622, 197960), (707, 174160), (784, 157055), (808, 152390), (980, 125644), (1010, 121912), (1244, 98980), (1414, 87080), (1555, 79184), (1616, 76195), (1960, 62822), (2020, 60956), (2177, 56560), (2488, 49490), (2828, 43540), (3110, 39592), (3535, 34832), (3920, 31411), (4040, 30478), (4354, 28280), (4949, 24880), (4976, 24745), (5656, 21770), (6220, 19796), (7070, 17416), (8080, 15239), (8708, 14140), (9898, 12440), (10885, 11312)]