1982820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4721}}^1$

素因数の和:4740

約数の個数: 48

約数和(自身を含む): 6346368

約数和(自身を除く): 4363548

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, 4721, 9442, 14163, 18884, 23605, 28326, 33047, 47210, 56652, 66094, 70815, 94420, 99141, 132188, 141630, 165235, 198282, 283260, 330470, 396564, 495705, 660940, 991410, 1982820]

約数ペア:

[(1, 1982820), (2, 991410), (3, 660940), (4, 495705), (5, 396564), (6, 330470), (7, 283260), (10, 198282), (12, 165235), (14, 141630), (15, 132188), (20, 99141), (21, 94420), (28, 70815), (30, 66094), (35, 56652), (42, 47210), (60, 33047), (70, 28326), (84, 23605), (105, 18884), (140, 14163), (210, 9442), (420, 4721)]