19865792

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:110

約数の個数: 84

約数和(自身を含む): 45399960

約数和(自身を除く): 25534168

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 32, 34, 38, 62, 64, 68, 76, 124, 136, 152, 248, 272, 304, 323, 496, 527, 544, 589, 608, 646, 961, 992, 1054, 1088, 1178, 1216, 1292, 1922, 1984, 2108, 2356, 2584, 3844, 4216, 4712, 5168, 7688, 8432, 9424, 10013, 10336, 15376, 16337, 16864, 18259, 18848, 20026, 20672, 30752, 32674, 33728, 36518, 37696, 40052, 61504, 65348, 73036, 80104, 130696, 146072, 160208, 261392, 292144, 310403, 320416, 522784, 584288, 620806, 640832, 1045568, 1168576, 1241612, 2483224, 4966448, 9932896, 19865792]

約数ペア:

[(1, 19865792), (2, 9932896), (4, 4966448), (8, 2483224), (16, 1241612), (17, 1168576), (19, 1045568), (31, 640832), (32, 620806), (34, 584288), (38, 522784), (62, 320416), (64, 310403), (68, 292144), (76, 261392), (124, 160208), (136, 146072), (152, 130696), (248, 80104), (272, 73036), (304, 65348), (323, 61504), (496, 40052), (527, 37696), (544, 36518), (589, 33728), (608, 32674), (646, 30752), (961, 20672), (992, 20026), (1054, 18848), (1088, 18259), (1178, 16864), (1216, 16337), (1292, 15376), (1922, 10336), (1984, 10013), (2108, 9424), (2356, 8432), (2584, 7688), (3844, 5168), (4216, 4712)]