2629880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 6652800

約数和(自身を除く): 4022920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 139, 172, 215, 220, 278, 344, 430, 440, 473, 556, 695, 860, 946, 1112, 1390, 1529, 1720, 1892, 2365, 2780, 3058, 3784, 4730, 5560, 5977, 6116, 7645, 9460, 11954, 12232, 15290, 18920, 23908, 29885, 30580, 47816, 59770, 61160, 65747, 119540, 131494, 239080, 262988, 328735, 525976, 657470, 1314940, 2629880]

約数ペア:

[(1, 2629880), (2, 1314940), (4, 657470), (5, 525976), (8, 328735), (10, 262988), (11, 239080), (20, 131494), (22, 119540), (40, 65747), (43, 61160), (44, 59770), (55, 47816), (86, 30580), (88, 29885), (110, 23908), (139, 18920), (172, 15290), (215, 12232), (220, 11954), (278, 9460), (344, 7645), (430, 6116), (440, 5977), (473, 5560), (556, 4730), (695, 3784), (860, 3058), (946, 2780), (1112, 2365), (1390, 1892), (1529, 1720)]