20839390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 96

約数和(自身を含む): 47433600

約数和(自身を除く): 26594210

約数列:

[1, 2, 5, 10, 11, 13, 19, 22, 26, 38, 55, 59, 65, 95, 110, 118, 130, 143, 169, 190, 209, 247, 286, 295, 338, 418, 494, 590, 649, 715, 767, 845, 1045, 1121, 1235, 1298, 1430, 1534, 1690, 1859, 2090, 2242, 2470, 2717, 3211, 3245, 3718, 3835, 5434, 5605, 6422, 6490, 7670, 8437, 9295, 9971, 11210, 12331, 13585, 14573, 16055, 16874, 18590, 19942, 24662, 27170, 29146, 32110, 35321, 42185, 49855, 61655, 70642, 72865, 84370, 99710, 109681, 123310, 145730, 160303, 176605, 189449, 219362, 320606, 353210, 378898, 548405, 801515, 947245, 1096810, 1603030, 1894490, 2083939, 4167878, 10419695, 20839390]

約数ペア:

[(1, 20839390), (2, 10419695), (5, 4167878), (10, 2083939), (11, 1894490), (13, 1603030), (19, 1096810), (22, 947245), (26, 801515), (38, 548405), (55, 378898), (59, 353210), (65, 320606), (95, 219362), (110, 189449), (118, 176605), (130, 160303), (143, 145730), (169, 123310), (190, 109681), (209, 99710), (247, 84370), (286, 72865), (295, 70642), (338, 61655), (418, 49855), (494, 42185), (590, 35321), (649, 32110), (715, 29146), (767, 27170), (845, 24662), (1045, 19942), (1121, 18590), (1235, 16874), (1298, 16055), (1430, 14573), (1534, 13585), (1690, 12331), (1859, 11210), (2090, 9971), (2242, 9295), (2470, 8437), (2717, 7670), (3211, 6490), (3245, 6422), (3718, 5605), (3835, 5434)]