1985060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1289}}^1$

素因数の和:1316

約数の個数: 48

約数和(自身を含む): 5201280

約数和(自身を除く): 3216220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1289, 1540, 2578, 5156, 6445, 9023, 12890, 14179, 18046, 25780, 28358, 36092, 45115, 56716, 70895, 90230, 99253, 141790, 180460, 198506, 283580, 397012, 496265, 992530, 1985060]

約数ペア:

[(1, 1985060), (2, 992530), (4, 496265), (5, 397012), (7, 283580), (10, 198506), (11, 180460), (14, 141790), (20, 99253), (22, 90230), (28, 70895), (35, 56716), (44, 45115), (55, 36092), (70, 28358), (77, 25780), (110, 18046), (140, 14179), (154, 12890), (220, 9023), (308, 6445), (385, 5156), (770, 2578), (1289, 1540)]