201781620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{1811}}^1$

素因数の和:2445

約数の個数: 72

約数和(自身を含む): 613398240

約数和(自身を除く): 411616620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 619, 1238, 1811, 1857, 2476, 3095, 3622, 3714, 5433, 5571, 6190, 7244, 7428, 9055, 9285, 10866, 11142, 12380, 16299, 18110, 18570, 21732, 22284, 27165, 27855, 32598, 36220, 37140, 54330, 55710, 65196, 81495, 108660, 111420, 162990, 325980, 1121009, 2242018, 3363027, 4484036, 5605045, 6726054, 10089081, 11210090, 13452108, 16815135, 20178162, 22420180, 33630270, 40356324, 50445405, 67260540, 100890810, 201781620]

約数ペア:

[(1, 201781620), (2, 100890810), (3, 67260540), (4, 50445405), (5, 40356324), (6, 33630270), (9, 22420180), (10, 20178162), (12, 16815135), (15, 13452108), (18, 11210090), (20, 10089081), (30, 6726054), (36, 5605045), (45, 4484036), (60, 3363027), (90, 2242018), (180, 1121009), (619, 325980), (1238, 162990), (1811, 111420), (1857, 108660), (2476, 81495), (3095, 65196), (3622, 55710), (3714, 54330), (5433, 37140), (5571, 36220), (6190, 32598), (7244, 27855), (7428, 27165), (9055, 22284), (9285, 21732), (10866, 18570), (11142, 18110), (12380, 16299)]