28084420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1187}}^1$

素因数の和:1229

約数の個数: 72

約数和(自身を含む): 73047744

約数和(自身を除く): 44963324

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1187, 1690, 1820, 2366, 2374, 3380, 4732, 4748, 5915, 5935, 8309, 11830, 11870, 15431, 16618, 23660, 23740, 30862, 33236, 41545, 61724, 77155, 83090, 108017, 154310, 166180, 200603, 216034, 308620, 401206, 432068, 540085, 802412, 1003015, 1080170, 1404221, 2006030, 2160340, 2808442, 4012060, 5616884, 7021105, 14042210, 28084420]

約数ペア:

[(1, 28084420), (2, 14042210), (4, 7021105), (5, 5616884), (7, 4012060), (10, 2808442), (13, 2160340), (14, 2006030), (20, 1404221), (26, 1080170), (28, 1003015), (35, 802412), (52, 540085), (65, 432068), (70, 401206), (91, 308620), (130, 216034), (140, 200603), (169, 166180), (182, 154310), (260, 108017), (338, 83090), (364, 77155), (455, 61724), (676, 41545), (845, 33236), (910, 30862), (1183, 23740), (1187, 23660), (1690, 16618), (1820, 15431), (2366, 11870), (2374, 11830), (3380, 8309), (4732, 5935), (4748, 5915)]