28311780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67409}}^1$

素因数の和:67428

約数の個数: 48

約数和(自身を含む): 90599040

約数和(自身を除く): 62287260

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, 67409, 134818, 202227, 269636, 337045, 404454, 471863, 674090, 808908, 943726, 1011135, 1348180, 1415589, 1887452, 2022270, 2359315, 2831178, 4044540, 4718630, 5662356, 7077945, 9437260, 14155890, 28311780]

約数ペア:

[(1, 28311780), (2, 14155890), (3, 9437260), (4, 7077945), (5, 5662356), (6, 4718630), (7, 4044540), (10, 2831178), (12, 2359315), (14, 2022270), (15, 1887452), (20, 1415589), (21, 1348180), (28, 1011135), (30, 943726), (35, 808908), (42, 674090), (60, 471863), (70, 404454), (84, 337045), (105, 269636), (140, 202227), (210, 134818), (420, 67409)]