78707860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51109}}^1$

素因数の和:51136

約数の個数: 48

約数和(自身を含む): 206075520

約数和(自身を除く): 127367660

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 51109, 102218, 204436, 255545, 357763, 511090, 562199, 715526, 1022180, 1124398, 1431052, 1788815, 2248796, 2810995, 3577630, 3935393, 5621990, 7155260, 7870786, 11243980, 15741572, 19676965, 39353930, 78707860]

約数ペア:

[(1, 78707860), (2, 39353930), (4, 19676965), (5, 15741572), (7, 11243980), (10, 7870786), (11, 7155260), (14, 5621990), (20, 3935393), (22, 3577630), (28, 2810995), (35, 2248796), (44, 1788815), (55, 1431052), (70, 1124398), (77, 1022180), (110, 715526), (140, 562199), (154, 511090), (220, 357763), (308, 255545), (385, 204436), (770, 102218), (1540, 51109)]