20391030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:546

約数の個数: 96

約数和(自身を含む): 59304960

約数和(自身を除く): 38913930

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 43, 45, 55, 66, 86, 90, 99, 110, 129, 165, 198, 215, 258, 330, 387, 430, 473, 479, 495, 645, 774, 946, 958, 990, 1290, 1419, 1437, 1935, 2365, 2395, 2838, 2874, 3870, 4257, 4311, 4730, 4790, 5269, 7095, 7185, 8514, 8622, 10538, 14190, 14370, 15807, 20597, 21285, 21555, 26345, 31614, 41194, 42570, 43110, 47421, 52690, 61791, 79035, 94842, 102985, 123582, 158070, 185373, 205970, 226567, 237105, 308955, 370746, 453134, 474210, 617910, 679701, 926865, 1132835, 1359402, 1853730, 2039103, 2265670, 3398505, 4078206, 6797010, 10195515, 20391030]

約数ペア:

[(1, 20391030), (2, 10195515), (3, 6797010), (5, 4078206), (6, 3398505), (9, 2265670), (10, 2039103), (11, 1853730), (15, 1359402), (18, 1132835), (22, 926865), (30, 679701), (33, 617910), (43, 474210), (45, 453134), (55, 370746), (66, 308955), (86, 237105), (90, 226567), (99, 205970), (110, 185373), (129, 158070), (165, 123582), (198, 102985), (215, 94842), (258, 79035), (330, 61791), (387, 52690), (430, 47421), (473, 43110), (479, 42570), (495, 41194), (645, 31614), (774, 26345), (946, 21555), (958, 21285), (990, 20597), (1290, 15807), (1419, 14370), (1437, 14190), (1935, 10538), (2365, 8622), (2395, 8514), (2838, 7185), (2874, 7095), (3870, 5269), (4257, 4790), (4311, 4730)]