416380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 887040

約数和(自身を除く): 470660

約数列:

[1, 2, 4, 5, 10, 20, 109, 191, 218, 382, 436, 545, 764, 955, 1090, 1910, 2180, 3820, 20819, 41638, 83276, 104095, 208190, 416380]

約数ペア:

[(1, 416380), (2, 208190), (4, 104095), (5, 83276), (10, 41638), (20, 20819), (109, 3820), (191, 2180), (218, 1910), (382, 1090), (436, 955), (545, 764)]