81571590

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{761}}^1$

素因数の和:1174

約数の個数: 64

約数和(自身を含む): 218358720

約数和(自身を除く): 136787130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 397, 761, 794, 1191, 1522, 1985, 2283, 2382, 3573, 3805, 3970, 4566, 5955, 6849, 7146, 7610, 10719, 11415, 11910, 13698, 17865, 20547, 21438, 22830, 34245, 35730, 41094, 53595, 68490, 102735, 107190, 205470, 302117, 604234, 906351, 1510585, 1812702, 2719053, 3021170, 4531755, 5438106, 8157159, 9063510, 13595265, 16314318, 27190530, 40785795, 81571590]

約数ペア:

[(1, 81571590), (2, 40785795), (3, 27190530), (5, 16314318), (6, 13595265), (9, 9063510), (10, 8157159), (15, 5438106), (18, 4531755), (27, 3021170), (30, 2719053), (45, 1812702), (54, 1510585), (90, 906351), (135, 604234), (270, 302117), (397, 205470), (761, 107190), (794, 102735), (1191, 68490), (1522, 53595), (1985, 41094), (2283, 35730), (2382, 34245), (3573, 22830), (3805, 21438), (3970, 20547), (4566, 17865), (5955, 13698), (6849, 11910), (7146, 11415), (7610, 10719)]