82761520

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9491}}^1$

素因数の和:9613

約数の個数: 40

約数和(自身を含む): 194206320

約数和(自身を除く): 111444800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 9491, 18982, 37964, 47455, 75928, 94910, 151856, 189820, 379640, 759280, 1034519, 2069038, 4138076, 5172595, 8276152, 10345190, 16552304, 20690380, 41380760, 82761520]

約数ペア:

[(1, 82761520), (2, 41380760), (4, 20690380), (5, 16552304), (8, 10345190), (10, 8276152), (16, 5172595), (20, 4138076), (40, 2069038), (80, 1034519), (109, 759280), (218, 379640), (436, 189820), (545, 151856), (872, 94910), (1090, 75928), (1744, 47455), (2180, 37964), (4360, 18982), (8720, 9491)]