128820760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{169501}}^1$

素因数の和:169531

約数の個数: 32

約数和(自身を含む): 305103600

約数和(自身を除く): 176282840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 169501, 339002, 678004, 847505, 1356008, 1695010, 3220519, 3390020, 6441038, 6780040, 12882076, 16102595, 25764152, 32205190, 64410380, 128820760]

約数ペア:

[(1, 128820760), (2, 64410380), (4, 32205190), (5, 25764152), (8, 16102595), (10, 12882076), (19, 6780040), (20, 6441038), (38, 3390020), (40, 3220519), (76, 1695010), (95, 1356008), (152, 847505), (190, 678004), (380, 339002), (760, 169501)]