90811990

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^2\times {\mathrm{4111}}^1$

素因数の和:4212

約数の個数: 24

約数和(自身を含む): 167054112

約数和(自身を除く): 76242122

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 2209, 4111, 4418, 8222, 11045, 20555, 22090, 41110, 193217, 386434, 966085, 1932170, 9081199, 18162398, 45405995, 90811990]

約数ペア:

[(1, 90811990), (2, 45405995), (5, 18162398), (10, 9081199), (47, 1932170), (94, 966085), (235, 386434), (470, 193217), (2209, 41110), (4111, 22090), (4418, 20555), (8222, 11045)]