128690470

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{509}}^1$

素因数の和:840

約数の個数: 32

約数和(自身を含む): 235081440

約数和(自身を除く): 106390970

約数列:

[1, 2, 5, 10, 131, 193, 262, 386, 509, 655, 965, 1018, 1310, 1930, 2545, 5090, 25283, 50566, 66679, 98237, 126415, 133358, 196474, 252830, 333395, 491185, 666790, 982370, 12869047, 25738094, 64345235, 128690470]

約数ペア:

[(1, 128690470), (2, 64345235), (5, 25738094), (10, 12869047), (131, 982370), (193, 666790), (262, 491185), (386, 333395), (509, 252830), (655, 196474), (965, 133358), (1018, 126415), (1310, 98237), (1930, 66679), (2545, 50566), (5090, 25283)]