28834780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 69174000

約数和(自身を除く): 40339220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 449, 494, 676, 845, 898, 988, 1235, 1690, 1796, 2245, 2470, 3211, 3380, 4490, 4940, 5837, 6422, 8531, 8980, 11674, 12844, 16055, 17062, 23348, 29185, 32110, 34124, 42655, 58370, 64220, 75881, 85310, 110903, 116740, 151762, 170620, 221806, 303524, 379405, 443612, 554515, 758810, 1109030, 1441739, 1517620, 2218060, 2883478, 5766956, 7208695, 14417390, 28834780]

約数ペア:

[(1, 28834780), (2, 14417390), (4, 7208695), (5, 5766956), (10, 2883478), (13, 2218060), (19, 1517620), (20, 1441739), (26, 1109030), (38, 758810), (52, 554515), (65, 443612), (76, 379405), (95, 303524), (130, 221806), (169, 170620), (190, 151762), (247, 116740), (260, 110903), (338, 85310), (380, 75881), (449, 64220), (494, 58370), (676, 42655), (845, 34124), (898, 32110), (988, 29185), (1235, 23348), (1690, 17062), (1796, 16055), (2245, 12844), (2470, 11674), (3211, 8980), (3380, 8531), (4490, 6422), (4940, 5837)]