28398760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4201}}^1$

素因数の和:4238

約数の個数: 48

約数和(自身を含む): 69206940

約数和(自身を除く): 40808180

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 4201, 6760, 8402, 16804, 21005, 33608, 42010, 54613, 84020, 109226, 168040, 218452, 273065, 436904, 546130, 709969, 1092260, 1419938, 2184520, 2839876, 3549845, 5679752, 7099690, 14199380, 28398760]

約数ペア:

[(1, 28398760), (2, 14199380), (4, 7099690), (5, 5679752), (8, 3549845), (10, 2839876), (13, 2184520), (20, 1419938), (26, 1092260), (40, 709969), (52, 546130), (65, 436904), (104, 273065), (130, 218452), (169, 168040), (260, 109226), (338, 84020), (520, 54613), (676, 42010), (845, 33608), (1352, 21005), (1690, 16804), (3380, 8402), (4201, 6760)]