1286090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{761}}^1$

素因数の和:794

約数の個数: 24

約数和(自身を含む): 2510028

約数和(自身を除く): 1223938

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 761, 845, 1522, 1690, 3805, 7610, 9893, 19786, 49465, 98930, 128609, 257218, 643045, 1286090]

約数ペア:

[(1, 1286090), (2, 643045), (5, 257218), (10, 128609), (13, 98930), (26, 49465), (65, 19786), (130, 9893), (169, 7610), (338, 3805), (761, 1690), (845, 1522)]