28495120

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2719}}^1$

素因数の和:2863

約数の個数: 40

約数和(自身を含む): 66781440

約数和(自身を除く): 38286320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 2719, 5240, 5438, 10480, 10876, 13595, 21752, 27190, 43504, 54380, 108760, 217520, 356189, 712378, 1424756, 1780945, 2849512, 3561890, 5699024, 7123780, 14247560, 28495120]

約数ペア:

[(1, 28495120), (2, 14247560), (4, 7123780), (5, 5699024), (8, 3561890), (10, 2849512), (16, 1780945), (20, 1424756), (40, 712378), (80, 356189), (131, 217520), (262, 108760), (524, 54380), (655, 43504), (1048, 27190), (1310, 21752), (2096, 13595), (2620, 10876), (2719, 10480), (5240, 5438)]