16940495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:120

約数の個数: 64

約数和(自身を含む): 26611200

約数和(自身を除く): 9670705

約数列:

[1, 5, 11, 13, 19, 29, 43, 55, 65, 95, 143, 145, 209, 215, 247, 319, 377, 473, 551, 559, 715, 817, 1045, 1235, 1247, 1595, 1885, 2365, 2717, 2755, 2795, 4085, 4147, 6061, 6149, 6235, 7163, 8987, 10621, 13585, 13717, 16211, 20735, 23693, 30305, 30745, 35815, 44935, 53105, 68585, 78793, 81055, 116831, 118465, 178321, 260623, 308009, 393965, 584155, 891605, 1303115, 1540045, 3388099, 16940495]

約数ペア:

[(1, 16940495), (5, 3388099), (11, 1540045), (13, 1303115), (19, 891605), (29, 584155), (43, 393965), (55, 308009), (65, 260623), (95, 178321), (143, 118465), (145, 116831), (209, 81055), (215, 78793), (247, 68585), (319, 53105), (377, 44935), (473, 35815), (551, 30745), (559, 30305), (715, 23693), (817, 20735), (1045, 16211), (1235, 13717), (1247, 13585), (1595, 10621), (1885, 8987), (2365, 7163), (2717, 6235), (2755, 6149), (2795, 6061), (4085, 4147)]