4219490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 8398080

約数和(自身を除く): 4178590

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 431, 445, 862, 890, 979, 1958, 2155, 4310, 4741, 4895, 9482, 9790, 23705, 38359, 47410, 76718, 191795, 383590, 421949, 843898, 2109745, 4219490]

約数ペア:

[(1, 4219490), (2, 2109745), (5, 843898), (10, 421949), (11, 383590), (22, 191795), (55, 76718), (89, 47410), (110, 38359), (178, 23705), (431, 9790), (445, 9482), (862, 4895), (890, 4741), (979, 4310), (1958, 2155)]