1851780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4409}}^1$

素因数の和:4428

約数の個数: 48

約数和(自身を含む): 5927040

約数和(自身を除く): 4075260

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, 4409, 8818, 13227, 17636, 22045, 26454, 30863, 44090, 52908, 61726, 66135, 88180, 92589, 123452, 132270, 154315, 185178, 264540, 308630, 370356, 462945, 617260, 925890, 1851780]

約数ペア:

[(1, 1851780), (2, 925890), (3, 617260), (4, 462945), (5, 370356), (6, 308630), (7, 264540), (10, 185178), (12, 154315), (14, 132270), (15, 123452), (20, 92589), (21, 88180), (28, 66135), (30, 61726), (35, 52908), (42, 44090), (60, 30863), (70, 26454), (84, 22045), (105, 17636), (140, 13227), (210, 8818), (420, 4409)]