247743280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{162989}}^1$

素因数の和:163021

約数の個数: 40

約数和(自身を含む): 606322800

約数和(自身を除く): 358579520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 162989, 325978, 651956, 814945, 1303912, 1629890, 2607824, 3096791, 3259780, 6193582, 6519560, 12387164, 13039120, 15483955, 24774328, 30967910, 49548656, 61935820, 123871640, 247743280]

約数ペア:

[(1, 247743280), (2, 123871640), (4, 61935820), (5, 49548656), (8, 30967910), (10, 24774328), (16, 15483955), (19, 13039120), (20, 12387164), (38, 6519560), (40, 6193582), (76, 3259780), (80, 3096791), (95, 2607824), (152, 1629890), (190, 1303912), (304, 814945), (380, 651956), (760, 325978), (1520, 162989)]