20346416

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:202

約数の個数: 80

約数和(自身を含む): 45711360

約数和(自身を除く): 25364944

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 34, 38, 62, 68, 76, 124, 127, 136, 152, 248, 254, 272, 304, 323, 496, 508, 527, 589, 646, 1016, 1054, 1178, 1292, 2032, 2108, 2159, 2356, 2413, 2584, 3937, 4216, 4318, 4712, 4826, 5168, 7874, 8432, 8636, 9424, 9652, 10013, 15748, 17272, 19304, 20026, 31496, 34544, 38608, 40052, 41021, 62992, 66929, 74803, 80104, 82042, 133858, 149606, 160208, 164084, 267716, 299212, 328168, 535432, 598424, 656336, 1070864, 1196848, 1271651, 2543302, 5086604, 10173208, 20346416]

約数ペア:

[(1, 20346416), (2, 10173208), (4, 5086604), (8, 2543302), (16, 1271651), (17, 1196848), (19, 1070864), (31, 656336), (34, 598424), (38, 535432), (62, 328168), (68, 299212), (76, 267716), (124, 164084), (127, 160208), (136, 149606), (152, 133858), (248, 82042), (254, 80104), (272, 74803), (304, 66929), (323, 62992), (496, 41021), (508, 40052), (527, 38608), (589, 34544), (646, 31496), (1016, 20026), (1054, 19304), (1178, 17272), (1292, 15748), (2032, 10013), (2108, 9652), (2159, 9424), (2356, 8636), (2413, 8432), (2584, 7874), (3937, 5168), (4216, 4826), (4318, 4712)]