209269620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{541}}^1$

素因数の和:870

約数の個数: 144

約数和(自身を含む): 729176448

約数和(自身を除く): 519906828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 307, 315, 420, 541, 614, 630, 921, 1082, 1228, 1260, 1535, 1623, 1842, 2149, 2164, 2705, 2763, 3070, 3246, 3684, 3787, 4298, 4605, 4869, 5410, 5526, 6140, 6447, 6492, 7574, 8115, 8596, 9210, 9738, 10745, 10820, 11052, 11361, 12894, 13815, 15148, 16230, 18420, 18935, 19341, 19476, 21490, 22722, 24345, 25788, 27630, 32235, 32460, 34083, 37870, 38682, 42980, 45444, 48690, 55260, 56805, 64470, 68166, 75740, 77364, 96705, 97380, 113610, 128940, 136332, 166087, 170415, 193410, 227220, 332174, 340830, 386820, 498261, 664348, 681660, 830435, 996522, 1162609, 1494783, 1660870, 1993044, 2325218, 2491305, 2989566, 3321740, 3487827, 4650436, 4982610, 5813045, 5979132, 6975654, 7473915, 9965220, 10463481, 11626090, 13951308, 14947830, 17439135, 20926962, 23252180, 29895660, 34878270, 41853924, 52317405, 69756540, 104634810, 209269620]

約数ペア:

[(1, 209269620), (2, 104634810), (3, 69756540), (4, 52317405), (5, 41853924), (6, 34878270), (7, 29895660), (9, 23252180), (10, 20926962), (12, 17439135), (14, 14947830), (15, 13951308), (18, 11626090), (20, 10463481), (21, 9965220), (28, 7473915), (30, 6975654), (35, 5979132), (36, 5813045), (42, 4982610), (45, 4650436), (60, 3487827), (63, 3321740), (70, 2989566), (84, 2491305), (90, 2325218), (105, 1993044), (126, 1660870), (140, 1494783), (180, 1162609), (210, 996522), (252, 830435), (307, 681660), (315, 664348), (420, 498261), (541, 386820), (614, 340830), (630, 332174), (921, 227220), (1082, 193410), (1228, 170415), (1260, 166087), (1535, 136332), (1623, 128940), (1842, 113610), (2149, 97380), (2164, 96705), (2705, 77364), (2763, 75740), (3070, 68166), (3246, 64470), (3684, 56805), (3787, 55260), (4298, 48690), (4605, 45444), (4869, 42980), (5410, 38682), (5526, 37870), (6140, 34083), (6447, 32460), (6492, 32235), (7574, 27630), (8115, 25788), (8596, 24345), (9210, 22722), (9738, 21490), (10745, 19476), (10820, 19341), (11052, 18935), (11361, 18420), (12894, 16230), (13815, 15148)]