201990180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{480929}}^1$

素因数の和:480948

約数の個数: 48

約数和(自身を含む): 646369920

約数和(自身を除く): 444379740

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, 480929, 961858, 1442787, 1923716, 2404645, 2885574, 3366503, 4809290, 5771148, 6733006, 7213935, 9618580, 10099509, 13466012, 14427870, 16832515, 20199018, 28855740, 33665030, 40398036, 50497545, 67330060, 100995090, 201990180]

約数ペア:

[(1, 201990180), (2, 100995090), (3, 67330060), (4, 50497545), (5, 40398036), (6, 33665030), (7, 28855740), (10, 20199018), (12, 16832515), (14, 14427870), (15, 13466012), (20, 10099509), (21, 9618580), (28, 7213935), (30, 6733006), (35, 5771148), (42, 4809290), (60, 3366503), (70, 2885574), (84, 2404645), (105, 1923716), (140, 1442787), (210, 961858), (420, 480929)]