84205720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1097}}^1$

素因数の和:1228

約数の個数: 64

約数和(自身を含む): 201592800

約数和(自身を除く): 117387080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 380, 404, 505, 760, 808, 1010, 1097, 1919, 2020, 2194, 3838, 4040, 4388, 5485, 7676, 8776, 9595, 10970, 15352, 19190, 20843, 21940, 38380, 41686, 43880, 76760, 83372, 104215, 110797, 166744, 208430, 221594, 416860, 443188, 553985, 833720, 886376, 1107970, 2105143, 2215940, 4210286, 4431880, 8420572, 10525715, 16841144, 21051430, 42102860, 84205720]

約数ペア:

[(1, 84205720), (2, 42102860), (4, 21051430), (5, 16841144), (8, 10525715), (10, 8420572), (19, 4431880), (20, 4210286), (38, 2215940), (40, 2105143), (76, 1107970), (95, 886376), (101, 833720), (152, 553985), (190, 443188), (202, 416860), (380, 221594), (404, 208430), (505, 166744), (760, 110797), (808, 104215), (1010, 83372), (1097, 76760), (1919, 43880), (2020, 41686), (2194, 38380), (3838, 21940), (4040, 20843), (4388, 19190), (5485, 15352), (7676, 10970), (8776, 9595)]