78462440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{280223}}^1$

素因数の和:280241

約数の個数: 32

約数和(自身を含む): 201761280

約数和(自身を除く): 123298840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 280223, 560446, 1120892, 1401115, 1961561, 2241784, 2802230, 3923122, 5604460, 7846244, 9807805, 11208920, 15692488, 19615610, 39231220, 78462440]

約数ペア:

[(1, 78462440), (2, 39231220), (4, 19615610), (5, 15692488), (7, 11208920), (8, 9807805), (10, 7846244), (14, 5604460), (20, 3923122), (28, 2802230), (35, 2241784), (40, 1961561), (56, 1401115), (70, 1120892), (140, 560446), (280, 280223)]