15639280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10289}}^1$

素因数の和:10321

約数の個数: 40

約数和(自身を含む): 38278800

約数和(自身を除く): 22639520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 10289, 20578, 41156, 51445, 82312, 102890, 164624, 195491, 205780, 390982, 411560, 781964, 823120, 977455, 1563928, 1954910, 3127856, 3909820, 7819640, 15639280]

約数ペア:

[(1, 15639280), (2, 7819640), (4, 3909820), (5, 3127856), (8, 1954910), (10, 1563928), (16, 977455), (19, 823120), (20, 781964), (38, 411560), (40, 390982), (76, 205780), (80, 195491), (95, 164624), (152, 102890), (190, 82312), (304, 51445), (380, 41156), (760, 20578), (1520, 10289)]