20872590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8807}}^1$

素因数の和:8896

約数の個数: 32

約数和(自身を含む): 50734080

約数和(自身を除く): 29861490

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 8807, 17614, 26421, 44035, 52842, 88070, 132105, 264210, 695753, 1391506, 2087259, 3478765, 4174518, 6957530, 10436295, 20872590]

約数ペア:

[(1, 20872590), (2, 10436295), (3, 6957530), (5, 4174518), (6, 3478765), (10, 2087259), (15, 1391506), (30, 695753), (79, 264210), (158, 132105), (237, 88070), (395, 52842), (474, 44035), (790, 26421), (1185, 17614), (2370, 8807)]