20489712

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 55413120

約数和(自身を除く): 34923408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 83, 111, 139, 148, 166, 222, 249, 278, 296, 332, 417, 444, 498, 556, 592, 664, 834, 888, 996, 1112, 1328, 1668, 1776, 1992, 2224, 3071, 3336, 3984, 5143, 6142, 6672, 9213, 10286, 11537, 12284, 15429, 18426, 20572, 23074, 24568, 30858, 34611, 36852, 41144, 46148, 49136, 61716, 69222, 73704, 82288, 92296, 123432, 138444, 147408, 184592, 246864, 276888, 426869, 553776, 853738, 1280607, 1707476, 2561214, 3414952, 5122428, 6829904, 10244856, 20489712]

約数ペア:

[(1, 20489712), (2, 10244856), (3, 6829904), (4, 5122428), (6, 3414952), (8, 2561214), (12, 1707476), (16, 1280607), (24, 853738), (37, 553776), (48, 426869), (74, 276888), (83, 246864), (111, 184592), (139, 147408), (148, 138444), (166, 123432), (222, 92296), (249, 82288), (278, 73704), (296, 69222), (332, 61716), (417, 49136), (444, 46148), (498, 41144), (556, 36852), (592, 34611), (664, 30858), (834, 24568), (888, 23074), (996, 20572), (1112, 18426), (1328, 15429), (1668, 12284), (1776, 11537), (1992, 10286), (2224, 9213), (3071, 6672), (3336, 6142), (3984, 5143)]