201995220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{480941}}^1$

素因数の和:480960

約数の個数: 48

約数和(自身を含む): 646386048

約数和(自身を除く): 444390828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 480941, 961882, 1442823, 1923764, 2404705, 2885646, 3366587, 4809410, 5771292, 6733174, 7214115, 9618820, 10099761, 13466348, 14428230, 16832935, 20199522, 28856460, 33665870, 40399044, 50498805, 67331740, 100997610, 201995220]

約数ペア:

[(1, 201995220), (2, 100997610), (3, 67331740), (4, 50498805), (5, 40399044), (6, 33665870), (7, 28856460), (10, 20199522), (12, 16832935), (14, 14428230), (15, 13466348), (20, 10099761), (21, 9618820), (28, 7214115), (30, 6733174), (35, 5771292), (42, 4809410), (60, 3366587), (70, 2885646), (84, 2404705), (105, 1923764), (140, 1442823), (210, 961882), (420, 480941)]