78968820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{188021}}^1$

素因数の和:188040

約数の個数: 48

約数和(自身を含む): 252701568

約数和(自身を除く): 173732748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 188021, 376042, 564063, 752084, 940105, 1128126, 1316147, 1880210, 2256252, 2632294, 2820315, 3760420, 3948441, 5264588, 5640630, 6580735, 7896882, 11281260, 13161470, 15793764, 19742205, 26322940, 39484410, 78968820]

約数ペア:

[(1, 78968820), (2, 39484410), (3, 26322940), (4, 19742205), (5, 15793764), (6, 13161470), (7, 11281260), (10, 7896882), (12, 6580735), (14, 5640630), (15, 5264588), (20, 3948441), (21, 3760420), (28, 2820315), (30, 2632294), (35, 2256252), (42, 1880210), (60, 1316147), (70, 1128126), (84, 940105), (105, 752084), (140, 564063), (210, 376042), (420, 188021)]