215549680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1301}}^1$

素因数の和:1442

約数の個数: 80

約数和(自身を含む): 532778400

約数和(自身を除く): 317228720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 109, 152, 190, 218, 304, 380, 436, 545, 760, 872, 1090, 1301, 1520, 1744, 2071, 2180, 2602, 4142, 4360, 5204, 6505, 8284, 8720, 10355, 10408, 13010, 16568, 20710, 20816, 24719, 26020, 33136, 41420, 49438, 52040, 82840, 98876, 104080, 123595, 141809, 165680, 197752, 247190, 283618, 395504, 494380, 567236, 709045, 988760, 1134472, 1418090, 1977520, 2268944, 2694371, 2836180, 5388742, 5672360, 10777484, 11344720, 13471855, 21554968, 26943710, 43109936, 53887420, 107774840, 215549680]

約数ペア:

[(1, 215549680), (2, 107774840), (4, 53887420), (5, 43109936), (8, 26943710), (10, 21554968), (16, 13471855), (19, 11344720), (20, 10777484), (38, 5672360), (40, 5388742), (76, 2836180), (80, 2694371), (95, 2268944), (109, 1977520), (152, 1418090), (190, 1134472), (218, 988760), (304, 709045), (380, 567236), (436, 494380), (545, 395504), (760, 283618), (872, 247190), (1090, 197752), (1301, 165680), (1520, 141809), (1744, 123595), (2071, 104080), (2180, 98876), (2602, 82840), (4142, 52040), (4360, 49438), (5204, 41420), (6505, 33136), (8284, 26020), (8720, 24719), (10355, 20816), (10408, 20710), (13010, 16568)]