28383740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2633}}^1$

素因数の和:2667

約数の個数: 72

約数和(自身を含む): 75669552

約数和(自身を除く): 47285812

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2633, 2695, 5266, 5390, 10532, 10780, 13165, 18431, 26330, 28963, 36862, 52660, 57926, 73724, 92155, 115852, 129017, 144815, 184310, 202741, 258034, 289630, 368620, 405482, 516068, 579260, 645085, 810964, 1013705, 1290170, 1419187, 2027410, 2580340, 2838374, 4054820, 5676748, 7095935, 14191870, 28383740]

約数ペア:

[(1, 28383740), (2, 14191870), (4, 7095935), (5, 5676748), (7, 4054820), (10, 2838374), (11, 2580340), (14, 2027410), (20, 1419187), (22, 1290170), (28, 1013705), (35, 810964), (44, 645085), (49, 579260), (55, 516068), (70, 405482), (77, 368620), (98, 289630), (110, 258034), (140, 202741), (154, 184310), (196, 144815), (220, 129017), (245, 115852), (308, 92155), (385, 73724), (490, 57926), (539, 52660), (770, 36862), (980, 28963), (1078, 26330), (1540, 18431), (2156, 13165), (2633, 10780), (2695, 10532), (5266, 5390)]