87814720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:420

約数の個数: 112

約数和(自身を含む): 241401600

約数和(自身を除く): 153586880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 197, 199, 224, 280, 320, 394, 398, 448, 560, 788, 796, 985, 995, 1120, 1379, 1393, 1576, 1592, 1970, 1990, 2240, 2758, 2786, 3152, 3184, 3940, 3980, 5516, 5572, 6304, 6368, 6895, 6965, 7880, 7960, 11032, 11144, 12608, 12736, 13790, 13930, 15760, 15920, 22064, 22288, 27580, 27860, 31520, 31840, 39203, 44128, 44576, 55160, 55720, 63040, 63680, 78406, 88256, 89152, 110320, 111440, 156812, 196015, 220640, 222880, 274421, 313624, 392030, 441280, 445760, 548842, 627248, 784060, 1097684, 1254496, 1372105, 1568120, 2195368, 2508992, 2744210, 3136240, 4390736, 5488420, 6272480, 8781472, 10976840, 12544960, 17562944, 21953680, 43907360, 87814720]

約数ペア:

[(1, 87814720), (2, 43907360), (4, 21953680), (5, 17562944), (7, 12544960), (8, 10976840), (10, 8781472), (14, 6272480), (16, 5488420), (20, 4390736), (28, 3136240), (32, 2744210), (35, 2508992), (40, 2195368), (56, 1568120), (64, 1372105), (70, 1254496), (80, 1097684), (112, 784060), (140, 627248), (160, 548842), (197, 445760), (199, 441280), (224, 392030), (280, 313624), (320, 274421), (394, 222880), (398, 220640), (448, 196015), (560, 156812), (788, 111440), (796, 110320), (985, 89152), (995, 88256), (1120, 78406), (1379, 63680), (1393, 63040), (1576, 55720), (1592, 55160), (1970, 44576), (1990, 44128), (2240, 39203), (2758, 31840), (2786, 31520), (3152, 27860), (3184, 27580), (3940, 22288), (3980, 22064), (5516, 15920), (5572, 15760), (6304, 13930), (6368, 13790), (6895, 12736), (6965, 12608), (7880, 11144), (7960, 11032)]