281031520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{22811}}^1$

素因数の和:22844

約数の個数: 96

約数和(自身を含む): 827801856

約数和(自身を除く): 546770336

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1760, 2464, 3080, 6160, 12320, 22811, 45622, 91244, 114055, 159677, 182488, 228110, 250921, 319354, 364976, 456220, 501842, 638708, 729952, 798385, 912440, 1003684, 1254605, 1277416, 1596770, 1756447, 1824880, 2007368, 2509210, 2554832, 3193540, 3512894, 3649760, 4014736, 5018420, 5109664, 6387080, 7025788, 8029472, 8782235, 10036840, 12774160, 14051576, 17564470, 20073680, 25548320, 28103152, 35128940, 40147360, 56206304, 70257880, 140515760, 281031520]

約数ペア:

[(1, 281031520), (2, 140515760), (4, 70257880), (5, 56206304), (7, 40147360), (8, 35128940), (10, 28103152), (11, 25548320), (14, 20073680), (16, 17564470), (20, 14051576), (22, 12774160), (28, 10036840), (32, 8782235), (35, 8029472), (40, 7025788), (44, 6387080), (55, 5109664), (56, 5018420), (70, 4014736), (77, 3649760), (80, 3512894), (88, 3193540), (110, 2554832), (112, 2509210), (140, 2007368), (154, 1824880), (160, 1756447), (176, 1596770), (220, 1277416), (224, 1254605), (280, 1003684), (308, 912440), (352, 798385), (385, 729952), (440, 638708), (560, 501842), (616, 456220), (770, 364976), (880, 319354), (1120, 250921), (1232, 228110), (1540, 182488), (1760, 159677), (2464, 114055), (3080, 91244), (6160, 45622), (12320, 22811)]