28221620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4289}}^1$

素因数の和:4352

約数の個数: 48

約数和(自身を含む): 69189120

約数和(自身を除く): 40967500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 4289, 6580, 8578, 17156, 21445, 30023, 42890, 60046, 85780, 120092, 150115, 201583, 300230, 403166, 600460, 806332, 1007915, 1411081, 2015830, 2822162, 4031660, 5644324, 7055405, 14110810, 28221620]

約数ペア:

[(1, 28221620), (2, 14110810), (4, 7055405), (5, 5644324), (7, 4031660), (10, 2822162), (14, 2015830), (20, 1411081), (28, 1007915), (35, 806332), (47, 600460), (70, 403166), (94, 300230), (140, 201583), (188, 150115), (235, 120092), (329, 85780), (470, 60046), (658, 42890), (940, 30023), (1316, 21445), (1645, 17156), (3290, 8578), (4289, 6580)]