28867520

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 112

約数和(自身を含む): 76809600

約数和(自身を除く): 47942080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 59, 64, 80, 88, 110, 118, 139, 160, 176, 220, 236, 278, 295, 320, 352, 440, 472, 556, 590, 649, 695, 704, 880, 944, 1112, 1180, 1298, 1390, 1529, 1760, 1888, 2224, 2360, 2596, 2780, 3058, 3245, 3520, 3776, 4448, 4720, 5192, 5560, 6116, 6490, 7645, 8201, 8896, 9440, 10384, 11120, 12232, 12980, 15290, 16402, 18880, 20768, 22240, 24464, 25960, 30580, 32804, 41005, 41536, 44480, 48928, 51920, 61160, 65608, 82010, 90211, 97856, 103840, 122320, 131216, 164020, 180422, 207680, 244640, 262432, 328040, 360844, 451055, 489280, 524864, 656080, 721688, 902110, 1312160, 1443376, 1804220, 2624320, 2886752, 3608440, 5773504, 7216880, 14433760, 28867520]

約数ペア:

[(1, 28867520), (2, 14433760), (4, 7216880), (5, 5773504), (8, 3608440), (10, 2886752), (11, 2624320), (16, 1804220), (20, 1443376), (22, 1312160), (32, 902110), (40, 721688), (44, 656080), (55, 524864), (59, 489280), (64, 451055), (80, 360844), (88, 328040), (110, 262432), (118, 244640), (139, 207680), (160, 180422), (176, 164020), (220, 131216), (236, 122320), (278, 103840), (295, 97856), (320, 90211), (352, 82010), (440, 65608), (472, 61160), (556, 51920), (590, 48928), (649, 44480), (695, 41536), (704, 41005), (880, 32804), (944, 30580), (1112, 25960), (1180, 24464), (1298, 22240), (1390, 20768), (1529, 18880), (1760, 16402), (1888, 15290), (2224, 12980), (2360, 12232), (2596, 11120), (2780, 10384), (3058, 9440), (3245, 8896), (3520, 8201), (3776, 7645), (4448, 6490), (4720, 6116), (5192, 5560)]