31212760

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{14723}}^1$

素因数の和:14787

約数の個数: 32

約数和(自身を含む): 71558640

約数和(自身を除く): 40345880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 14723, 29446, 58892, 73615, 117784, 147230, 294460, 588920, 780319, 1560638, 3121276, 3901595, 6242552, 7803190, 15606380, 31212760]

約数ペア:

[(1, 31212760), (2, 15606380), (4, 7803190), (5, 6242552), (8, 3901595), (10, 3121276), (20, 1560638), (40, 780319), (53, 588920), (106, 294460), (212, 147230), (265, 117784), (424, 73615), (530, 58892), (1060, 29446), (2120, 14723)]