16391980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{74509}}^1$

素因数の和:74529

約数の個数: 24

約数和(自身を含む): 37553040

約数和(自身を除く): 21161060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 74509, 149018, 298036, 372545, 745090, 819599, 1490180, 1639198, 3278396, 4097995, 8195990, 16391980]

約数ペア:

[(1, 16391980), (2, 8195990), (4, 4097995), (5, 3278396), (10, 1639198), (11, 1490180), (20, 819599), (22, 745090), (44, 372545), (55, 298036), (110, 149018), (220, 74509)]