7216880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 18748800

約数和(自身を除く): 11531920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 139, 176, 220, 236, 278, 295, 440, 472, 556, 590, 649, 695, 880, 944, 1112, 1180, 1298, 1390, 1529, 2224, 2360, 2596, 2780, 3058, 3245, 4720, 5192, 5560, 6116, 6490, 7645, 8201, 10384, 11120, 12232, 12980, 15290, 16402, 24464, 25960, 30580, 32804, 41005, 51920, 61160, 65608, 82010, 90211, 122320, 131216, 164020, 180422, 328040, 360844, 451055, 656080, 721688, 902110, 1443376, 1804220, 3608440, 7216880]

約数ペア:

[(1, 7216880), (2, 3608440), (4, 1804220), (5, 1443376), (8, 902110), (10, 721688), (11, 656080), (16, 451055), (20, 360844), (22, 328040), (40, 180422), (44, 164020), (55, 131216), (59, 122320), (80, 90211), (88, 82010), (110, 65608), (118, 61160), (139, 51920), (176, 41005), (220, 32804), (236, 30580), (278, 25960), (295, 24464), (440, 16402), (472, 15290), (556, 12980), (590, 12232), (649, 11120), (695, 10384), (880, 8201), (944, 7645), (1112, 6490), (1180, 6116), (1298, 5560), (1390, 5192), (1529, 4720), (2224, 3245), (2360, 3058), (2596, 2780)]