491268085

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 779673600

約数和(自身を除く): 288405515

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 239, 281, 385, 665, 1045, 1195, 1405, 1463, 1673, 1967, 2629, 3091, 4541, 5339, 7315, 8365, 9835, 13145, 15455, 18403, 21637, 22705, 26695, 31787, 37373, 49951, 58729, 67159, 92015, 108185, 158935, 186865, 249755, 293645, 335795, 349657, 411103, 470113, 738749, 1276021, 1748285, 2055515, 2350565, 3693745, 5171243, 6380105, 8932147, 14036231, 25856215, 44660735, 70181155, 98253617, 491268085]

約数ペア:

[(1, 491268085), (5, 98253617), (7, 70181155), (11, 44660735), (19, 25856215), (35, 14036231), (55, 8932147), (77, 6380105), (95, 5171243), (133, 3693745), (209, 2350565), (239, 2055515), (281, 1748285), (385, 1276021), (665, 738749), (1045, 470113), (1195, 411103), (1405, 349657), (1463, 335795), (1673, 293645), (1967, 249755), (2629, 186865), (3091, 158935), (4541, 108185), (5339, 92015), (7315, 67159), (8365, 58729), (9835, 49951), (13145, 37373), (15455, 31787), (18403, 26695), (21637, 22705)]