28854980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:525

約数の個数: 96

約数和(自身を含む): 77559552

約数和(自身を除く): 48704572

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 41, 44, 55, 70, 77, 82, 110, 140, 154, 164, 205, 220, 287, 308, 385, 410, 451, 457, 574, 770, 820, 902, 914, 1148, 1435, 1540, 1804, 1828, 2255, 2285, 2870, 3157, 3199, 4510, 4570, 5027, 5740, 6314, 6398, 9020, 9140, 10054, 12628, 12796, 15785, 15995, 18737, 20108, 25135, 31570, 31990, 35189, 37474, 50270, 63140, 63980, 70378, 74948, 93685, 100540, 131159, 140756, 175945, 187370, 206107, 262318, 351890, 374740, 412214, 524636, 655795, 703780, 824428, 1030535, 1311590, 1442749, 2061070, 2623180, 2885498, 4122140, 5770996, 7213745, 14427490, 28854980]

約数ペア:

[(1, 28854980), (2, 14427490), (4, 7213745), (5, 5770996), (7, 4122140), (10, 2885498), (11, 2623180), (14, 2061070), (20, 1442749), (22, 1311590), (28, 1030535), (35, 824428), (41, 703780), (44, 655795), (55, 524636), (70, 412214), (77, 374740), (82, 351890), (110, 262318), (140, 206107), (154, 187370), (164, 175945), (205, 140756), (220, 131159), (287, 100540), (308, 93685), (385, 74948), (410, 70378), (451, 63980), (457, 63140), (574, 50270), (770, 37474), (820, 35189), (902, 31990), (914, 31570), (1148, 25135), (1435, 20108), (1540, 18737), (1804, 15995), (1828, 15785), (2255, 12796), (2285, 12628), (2870, 10054), (3157, 9140), (3199, 9020), (4510, 6398), (4570, 6314), (5027, 5740)]