291266855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1229}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 396748800

約数和(自身を除く): 105481945

約数列:

[1, 5, 11, 31, 55, 139, 155, 341, 695, 1229, 1529, 1705, 4309, 6145, 7645, 13519, 21545, 38099, 47399, 67595, 170831, 190495, 236995, 419089, 854155, 1879141, 2095445, 5295761, 9395705, 26478805, 58253371, 291266855]

約数ペア:

[(1, 291266855), (5, 58253371), (11, 26478805), (31, 9395705), (55, 5295761), (139, 2095445), (155, 1879141), (341, 854155), (695, 419089), (1229, 236995), (1529, 190495), (1705, 170831), (4309, 67595), (6145, 47399), (7645, 38099), (13519, 21545)]