2061780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4909}}^1$

素因数の和:4928

約数の個数: 48

約数和(自身を含む): 6599040

約数和(自身を除く): 4537260

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, 4909, 9818, 14727, 19636, 24545, 29454, 34363, 49090, 58908, 68726, 73635, 98180, 103089, 137452, 147270, 171815, 206178, 294540, 343630, 412356, 515445, 687260, 1030890, 2061780]

約数ペア:

[(1, 2061780), (2, 1030890), (3, 687260), (4, 515445), (5, 412356), (6, 343630), (7, 294540), (10, 206178), (12, 171815), (14, 147270), (15, 137452), (20, 103089), (21, 98180), (28, 73635), (30, 68726), (35, 58908), (42, 49090), (60, 34363), (70, 29454), (84, 24545), (105, 19636), (140, 14727), (210, 9818), (420, 4909)]