31605990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81041}}^1$

素因数の和:81064

約数の個数: 32

約数和(自身を含む): 81690336

約数和(自身を除く): 50084346

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 81041, 162082, 243123, 405205, 486246, 810410, 1053533, 1215615, 2107066, 2431230, 3160599, 5267665, 6321198, 10535330, 15802995, 31605990]

約数ペア:

[(1, 31605990), (2, 15802995), (3, 10535330), (5, 6321198), (6, 5267665), (10, 3160599), (13, 2431230), (15, 2107066), (26, 1215615), (30, 1053533), (39, 810410), (65, 486246), (78, 405205), (130, 243123), (195, 162082), (390, 81041)]