78281880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:401

約数の個数: 128

約数和(自身を含む): 248209920

約数和(自身を除く): 169928040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 113, 115, 120, 138, 184, 226, 230, 251, 276, 339, 345, 452, 460, 502, 552, 565, 678, 690, 753, 904, 920, 1004, 1130, 1255, 1356, 1380, 1506, 1695, 2008, 2260, 2510, 2599, 2712, 2760, 3012, 3390, 3765, 4520, 5020, 5198, 5773, 6024, 6780, 7530, 7797, 10040, 10396, 11546, 12995, 13560, 15060, 15594, 17319, 20792, 23092, 25990, 28363, 28865, 30120, 31188, 34638, 38985, 46184, 51980, 56726, 57730, 62376, 69276, 77970, 85089, 86595, 103960, 113452, 115460, 138552, 141815, 155940, 170178, 173190, 226904, 230920, 283630, 311880, 340356, 346380, 425445, 567260, 652349, 680712, 692760, 850890, 1134520, 1304698, 1701780, 1957047, 2609396, 3261745, 3403560, 3914094, 5218792, 6523490, 7828188, 9785235, 13046980, 15656376, 19570470, 26093960, 39140940, 78281880]

約数ペア:

[(1, 78281880), (2, 39140940), (3, 26093960), (4, 19570470), (5, 15656376), (6, 13046980), (8, 9785235), (10, 7828188), (12, 6523490), (15, 5218792), (20, 3914094), (23, 3403560), (24, 3261745), (30, 2609396), (40, 1957047), (46, 1701780), (60, 1304698), (69, 1134520), (92, 850890), (113, 692760), (115, 680712), (120, 652349), (138, 567260), (184, 425445), (226, 346380), (230, 340356), (251, 311880), (276, 283630), (339, 230920), (345, 226904), (452, 173190), (460, 170178), (502, 155940), (552, 141815), (565, 138552), (678, 115460), (690, 113452), (753, 103960), (904, 86595), (920, 85089), (1004, 77970), (1130, 69276), (1255, 62376), (1356, 57730), (1380, 56726), (1506, 51980), (1695, 46184), (2008, 38985), (2260, 34638), (2510, 31188), (2599, 30120), (2712, 28865), (2760, 28363), (3012, 25990), (3390, 23092), (3765, 20792), (4520, 17319), (5020, 15594), (5198, 15060), (5773, 13560), (6024, 12995), (6780, 11546), (7530, 10396), (7797, 10040)]