31312385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:737

約数の個数: 32

約数和(自身を含む): 43908480

約数和(自身を除く): 12596095

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 659, 731, 1105, 2795, 3295, 3655, 8567, 9503, 11203, 28337, 42835, 47515, 56015, 141685, 145639, 368381, 481729, 728195, 1841905, 2408645, 6262477, 31312385]

約数ペア:

[(1, 31312385), (5, 6262477), (13, 2408645), (17, 1841905), (43, 728195), (65, 481729), (85, 368381), (215, 145639), (221, 141685), (559, 56015), (659, 47515), (731, 42835), (1105, 28337), (2795, 11203), (3295, 9503), (3655, 8567)]