20170072780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{164011}}^1$

素因数の和:164087

約数の個数: 96

約数和(自身を含む): 50919821568

約数和(自身を除く): 30749748788

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 43, 44, 52, 55, 65, 86, 110, 130, 143, 172, 215, 220, 260, 286, 430, 473, 559, 572, 715, 860, 946, 1118, 1430, 1892, 2236, 2365, 2795, 2860, 4730, 5590, 6149, 9460, 11180, 12298, 24596, 30745, 61490, 122980, 164011, 328022, 656044, 820055, 1640110, 1804121, 2132143, 3280220, 3608242, 4264286, 7052473, 7216484, 8528572, 9020605, 10660715, 14104946, 18041210, 21321430, 23453573, 28209892, 35262365, 36082420, 42642860, 46907146, 70524730, 77577203, 91682149, 93814292, 117267865, 141049460, 155154406, 183364298, 234535730, 310308812, 366728596, 387886015, 458410745, 469071460, 775772030, 916821490, 1008503639, 1551544060, 1833642980, 2017007278, 4034014556, 5042518195, 10085036390, 20170072780]

約数ペア:

[(1, 20170072780), (2, 10085036390), (4, 5042518195), (5, 4034014556), (10, 2017007278), (11, 1833642980), (13, 1551544060), (20, 1008503639), (22, 916821490), (26, 775772030), (43, 469071460), (44, 458410745), (52, 387886015), (55, 366728596), (65, 310308812), (86, 234535730), (110, 183364298), (130, 155154406), (143, 141049460), (172, 117267865), (215, 93814292), (220, 91682149), (260, 77577203), (286, 70524730), (430, 46907146), (473, 42642860), (559, 36082420), (572, 35262365), (715, 28209892), (860, 23453573), (946, 21321430), (1118, 18041210), (1430, 14104946), (1892, 10660715), (2236, 9020605), (2365, 8528572), (2795, 7216484), (2860, 7052473), (4730, 4264286), (5590, 3608242), (6149, 3280220), (9460, 2132143), (11180, 1804121), (12298, 1640110), (24596, 820055), (30745, 656044), (61490, 328022), (122980, 164011)]