1218678695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1\times {\mathrm{691}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 1616423424

約数和(自身を除く): 397744729

約数列:

[1, 5, 13, 43, 65, 215, 559, 631, 691, 2795, 3155, 3455, 8203, 8983, 27133, 29713, 41015, 44915, 135665, 148565, 352729, 386269, 436021, 1763645, 1931345, 2180105, 5668273, 18748903, 28341365, 93744515, 243735739, 1218678695]

約数ペア:

[(1, 1218678695), (5, 243735739), (13, 93744515), (43, 28341365), (65, 18748903), (215, 5668273), (559, 2180105), (631, 1931345), (691, 1763645), (2795, 436021), (3155, 386269), (3455, 352729), (8203, 148565), (8983, 135665), (27133, 44915), (29713, 41015)]