20461936

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 47318400

約数和(自身を除く): 26856464

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 29, 38, 44, 58, 76, 88, 116, 152, 176, 209, 211, 232, 304, 319, 418, 422, 464, 551, 638, 836, 844, 1102, 1276, 1672, 1688, 2204, 2321, 2552, 3344, 3376, 4009, 4408, 4642, 5104, 6061, 6119, 8018, 8816, 9284, 12122, 12238, 16036, 18568, 24244, 24476, 32072, 37136, 44099, 48488, 48952, 64144, 67309, 88198, 96976, 97904, 116261, 134618, 176396, 232522, 269236, 352792, 465044, 538472, 705584, 930088, 1076944, 1278871, 1860176, 2557742, 5115484, 10230968, 20461936]

約数ペア:

[(1, 20461936), (2, 10230968), (4, 5115484), (8, 2557742), (11, 1860176), (16, 1278871), (19, 1076944), (22, 930088), (29, 705584), (38, 538472), (44, 465044), (58, 352792), (76, 269236), (88, 232522), (116, 176396), (152, 134618), (176, 116261), (209, 97904), (211, 96976), (232, 88198), (304, 67309), (319, 64144), (418, 48952), (422, 48488), (464, 44099), (551, 37136), (638, 32072), (836, 24476), (844, 24244), (1102, 18568), (1276, 16036), (1672, 12238), (1688, 12122), (2204, 9284), (2321, 8816), (2552, 8018), (3344, 6119), (3376, 6061), (4009, 5104), (4408, 4642)]