18685512

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 56880000

約数和(自身を除く): 38194488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 29, 36, 38, 54, 57, 58, 72, 76, 87, 108, 114, 116, 152, 157, 171, 174, 216, 228, 232, 261, 314, 342, 348, 456, 471, 513, 522, 551, 628, 684, 696, 783, 942, 1026, 1044, 1102, 1256, 1368, 1413, 1566, 1653, 1884, 2052, 2088, 2204, 2826, 2983, 3132, 3306, 3768, 4104, 4239, 4408, 4553, 4959, 5652, 5966, 6264, 6612, 8478, 8949, 9106, 9918, 11304, 11932, 13224, 13659, 14877, 16956, 17898, 18212, 19836, 23864, 26847, 27318, 29754, 33912, 35796, 36424, 39672, 40977, 53694, 54636, 59508, 71592, 80541, 81954, 86507, 107388, 109272, 119016, 122931, 161082, 163908, 173014, 214776, 245862, 259521, 322164, 327816, 346028, 491724, 519042, 644328, 692056, 778563, 983448, 1038084, 1557126, 2076168, 2335689, 3114252, 4671378, 6228504, 9342756, 18685512]

約数ペア:

[(1, 18685512), (2, 9342756), (3, 6228504), (4, 4671378), (6, 3114252), (8, 2335689), (9, 2076168), (12, 1557126), (18, 1038084), (19, 983448), (24, 778563), (27, 692056), (29, 644328), (36, 519042), (38, 491724), (54, 346028), (57, 327816), (58, 322164), (72, 259521), (76, 245862), (87, 214776), (108, 173014), (114, 163908), (116, 161082), (152, 122931), (157, 119016), (171, 109272), (174, 107388), (216, 86507), (228, 81954), (232, 80541), (261, 71592), (314, 59508), (342, 54636), (348, 53694), (456, 40977), (471, 39672), (513, 36424), (522, 35796), (551, 33912), (628, 29754), (684, 27318), (696, 26847), (783, 23864), (942, 19836), (1026, 18212), (1044, 17898), (1102, 16956), (1256, 14877), (1368, 13659), (1413, 13224), (1566, 11932), (1653, 11304), (1884, 9918), (2052, 9106), (2088, 8949), (2204, 8478), (2826, 6612), (2983, 6264), (3132, 5966), (3306, 5652), (3768, 4959), (4104, 4553), (4239, 4408)]