68631780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163409}}^1$

素因数の和:163428

約数の個数: 48

約数和(自身を含む): 219623040

約数和(自身を除く): 150991260

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, 163409, 326818, 490227, 653636, 817045, 980454, 1143863, 1634090, 1960908, 2287726, 2451135, 3268180, 3431589, 4575452, 4902270, 5719315, 6863178, 9804540, 11438630, 13726356, 17157945, 22877260, 34315890, 68631780]

約数ペア:

[(1, 68631780), (2, 34315890), (3, 22877260), (4, 17157945), (5, 13726356), (6, 11438630), (7, 9804540), (10, 6863178), (12, 5719315), (14, 4902270), (15, 4575452), (20, 3431589), (21, 3268180), (28, 2451135), (30, 2287726), (35, 1960908), (42, 1634090), (60, 1143863), (70, 980454), (84, 817045), (105, 653636), (140, 490227), (210, 326818), (420, 163409)]