123405760

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20297}}^1$

素因数の和:20333

約数の個数: 56

約数和(自身を含む): 309341520

約数和(自身を除く): 185935760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 6080, 20297, 40594, 81188, 101485, 162376, 202970, 324752, 385643, 405940, 649504, 771286, 811880, 1299008, 1542572, 1623760, 1928215, 3085144, 3247520, 3856430, 6170288, 6495040, 7712860, 12340576, 15425720, 24681152, 30851440, 61702880, 123405760]

約数ペア:

[(1, 123405760), (2, 61702880), (4, 30851440), (5, 24681152), (8, 15425720), (10, 12340576), (16, 7712860), (19, 6495040), (20, 6170288), (32, 3856430), (38, 3247520), (40, 3085144), (64, 1928215), (76, 1623760), (80, 1542572), (95, 1299008), (152, 811880), (160, 771286), (190, 649504), (304, 405940), (320, 385643), (380, 324752), (608, 202970), (760, 162376), (1216, 101485), (1520, 81188), (3040, 40594), (6080, 20297)]