64878520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{231709}}^1$

素因数の和:231727

約数の個数: 32

約数和(自身を含む): 166831200

約数和(自身を除く): 101952680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 231709, 463418, 926836, 1158545, 1621963, 1853672, 2317090, 3243926, 4634180, 6487852, 8109815, 9268360, 12975704, 16219630, 32439260, 64878520]

約数ペア:

[(1, 64878520), (2, 32439260), (4, 16219630), (5, 12975704), (7, 9268360), (8, 8109815), (10, 6487852), (14, 4634180), (20, 3243926), (28, 2317090), (35, 1853672), (40, 1621963), (56, 1158545), (70, 926836), (140, 463418), (280, 231709)]