78470140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560501}}^1$

素因数の和:560517

約数の個数: 24

約数和(自身を含む): 188328672

約数和(自身を除く): 109858532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560501, 1121002, 2242004, 2802505, 3923507, 5605010, 7847014, 11210020, 15694028, 19617535, 39235070, 78470140]

約数ペア:

[(1, 78470140), (2, 39235070), (4, 19617535), (5, 15694028), (7, 11210020), (10, 7847014), (14, 5605010), (20, 3923507), (28, 2802505), (35, 2242004), (70, 1121002), (140, 560501)]