31709990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{691}}^1$

素因数の和:1064

約数の個数: 32

約数和(自身を含む): 61731936

約数和(自身を除く): 30021946

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 353, 691, 706, 1382, 1765, 3455, 3530, 4589, 6910, 8983, 9178, 17966, 22945, 44915, 45890, 89830, 243923, 487846, 1219615, 2439230, 3170999, 6341998, 15854995, 31709990]

約数ペア:

[(1, 31709990), (2, 15854995), (5, 6341998), (10, 3170999), (13, 2439230), (26, 1219615), (65, 487846), (130, 243923), (353, 89830), (691, 45890), (706, 44915), (1382, 22945), (1765, 17966), (3455, 9178), (3530, 8983), (4589, 6910)]