18963560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 54743040

約数和(自身を除く): 35779480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 47, 55, 56, 70, 77, 88, 94, 110, 131, 140, 154, 188, 220, 235, 262, 280, 308, 329, 376, 385, 440, 470, 517, 524, 616, 655, 658, 770, 917, 940, 1034, 1048, 1310, 1316, 1441, 1540, 1645, 1834, 1880, 2068, 2585, 2620, 2632, 2882, 3080, 3290, 3619, 3668, 4136, 4585, 5170, 5240, 5764, 6157, 6580, 7205, 7238, 7336, 9170, 10087, 10340, 11528, 12314, 13160, 14410, 14476, 18095, 18340, 20174, 20680, 24628, 28820, 28952, 30785, 36190, 36680, 40348, 43099, 49256, 50435, 57640, 61570, 67727, 72380, 80696, 86198, 100870, 123140, 135454, 144760, 172396, 201740, 215495, 246280, 270908, 338635, 344792, 403480, 430990, 474089, 541816, 677270, 861980, 948178, 1354540, 1723960, 1896356, 2370445, 2709080, 3792712, 4740890, 9481780, 18963560]

約数ペア:

[(1, 18963560), (2, 9481780), (4, 4740890), (5, 3792712), (7, 2709080), (8, 2370445), (10, 1896356), (11, 1723960), (14, 1354540), (20, 948178), (22, 861980), (28, 677270), (35, 541816), (40, 474089), (44, 430990), (47, 403480), (55, 344792), (56, 338635), (70, 270908), (77, 246280), (88, 215495), (94, 201740), (110, 172396), (131, 144760), (140, 135454), (154, 123140), (188, 100870), (220, 86198), (235, 80696), (262, 72380), (280, 67727), (308, 61570), (329, 57640), (376, 50435), (385, 49256), (440, 43099), (470, 40348), (517, 36680), (524, 36190), (616, 30785), (655, 28952), (658, 28820), (770, 24628), (917, 20680), (940, 20174), (1034, 18340), (1048, 18095), (1310, 14476), (1316, 14410), (1441, 13160), (1540, 12314), (1645, 11528), (1834, 10340), (1880, 10087), (2068, 9170), (2585, 7336), (2620, 7238), (2632, 7205), (2882, 6580), (3080, 6157), (3290, 5764), (3619, 5240), (3668, 5170), (4136, 4585)]