4239280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2789}}^1$

素因数の和:2821

約数の個数: 40

約数和(自身を含む): 10378800

約数和(自身を除く): 6139520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 2789, 5578, 11156, 13945, 22312, 27890, 44624, 52991, 55780, 105982, 111560, 211964, 223120, 264955, 423928, 529910, 847856, 1059820, 2119640, 4239280]

約数ペア:

[(1, 4239280), (2, 2119640), (4, 1059820), (5, 847856), (8, 529910), (10, 423928), (16, 264955), (19, 223120), (20, 211964), (38, 111560), (40, 105982), (76, 55780), (80, 52991), (95, 44624), (152, 27890), (190, 22312), (304, 13945), (380, 11156), (760, 5578), (1520, 2789)]