90209872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 192924160

約数和(自身を除く): 102714288

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 67, 76, 86, 103, 134, 152, 172, 206, 268, 304, 344, 412, 536, 688, 817, 824, 1072, 1273, 1634, 1648, 1957, 2546, 2881, 3268, 3914, 4429, 5092, 5762, 6536, 6901, 7828, 8858, 10184, 11524, 13072, 13802, 15656, 17716, 20368, 23048, 27604, 31312, 35432, 46096, 54739, 55208, 70864, 84151, 109478, 110416, 131119, 168302, 218956, 262238, 296743, 336604, 437912, 524476, 593486, 673208, 875824, 1048952, 1186972, 1346416, 2097904, 2373944, 4747888, 5638117, 11276234, 22552468, 45104936, 90209872]

約数ペア:

[(1, 90209872), (2, 45104936), (4, 22552468), (8, 11276234), (16, 5638117), (19, 4747888), (38, 2373944), (43, 2097904), (67, 1346416), (76, 1186972), (86, 1048952), (103, 875824), (134, 673208), (152, 593486), (172, 524476), (206, 437912), (268, 336604), (304, 296743), (344, 262238), (412, 218956), (536, 168302), (688, 131119), (817, 110416), (824, 109478), (1072, 84151), (1273, 70864), (1634, 55208), (1648, 54739), (1957, 46096), (2546, 35432), (2881, 31312), (3268, 27604), (3914, 23048), (4429, 20368), (5092, 17716), (5762, 15656), (6536, 13802), (6901, 13072), (7828, 11524), (8858, 10184)]