31920228

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2029}}^1$

素因数の和:2081

約数の個数: 72

約数和(自身を含む): 88670400

約数和(自身を除く): 56750172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 46, 57, 69, 76, 92, 114, 138, 171, 207, 228, 276, 342, 414, 437, 684, 828, 874, 1311, 1748, 2029, 2622, 3933, 4058, 5244, 6087, 7866, 8116, 12174, 15732, 18261, 24348, 36522, 38551, 46667, 73044, 77102, 93334, 115653, 140001, 154204, 186668, 231306, 280002, 346959, 420003, 462612, 560004, 693918, 840006, 886673, 1387836, 1680012, 1773346, 2660019, 3546692, 5320038, 7980057, 10640076, 15960114, 31920228]

約数ペア:

[(1, 31920228), (2, 15960114), (3, 10640076), (4, 7980057), (6, 5320038), (9, 3546692), (12, 2660019), (18, 1773346), (19, 1680012), (23, 1387836), (36, 886673), (38, 840006), (46, 693918), (57, 560004), (69, 462612), (76, 420003), (92, 346959), (114, 280002), (138, 231306), (171, 186668), (207, 154204), (228, 140001), (276, 115653), (342, 93334), (414, 77102), (437, 73044), (684, 46667), (828, 38551), (874, 36522), (1311, 24348), (1748, 18261), (2029, 15732), (2622, 12174), (3933, 8116), (4058, 7866), (5244, 6087)]