408880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1$

素因数の和:301

約数の個数: 40

約数和(自身を含む): 1004400

約数和(自身を除く): 595520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 269, 304, 380, 538, 760, 1076, 1345, 1520, 2152, 2690, 4304, 5111, 5380, 10222, 10760, 20444, 21520, 25555, 40888, 51110, 81776, 102220, 204440, 408880]

約数ペア:

[(1, 408880), (2, 204440), (4, 102220), (5, 81776), (8, 51110), (10, 40888), (16, 25555), (19, 21520), (20, 20444), (38, 10760), (40, 10222), (76, 5380), (80, 5111), (95, 4304), (152, 2690), (190, 2152), (269, 1520), (304, 1345), (380, 1076), (538, 760)]