165648640

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1019}}^1$

素因数の和:1167

約数の個数: 72

約数和(自身を含む): 400296960

約数和(自身を除く): 234648320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1019, 1270, 1280, 2032, 2038, 2540, 4064, 4076, 5080, 5095, 8128, 8152, 10160, 10190, 16256, 16304, 20320, 20380, 32512, 32608, 40640, 40760, 65216, 81280, 81520, 129413, 130432, 162560, 163040, 258826, 260864, 326080, 517652, 647065, 652160, 1035304, 1294130, 1304320, 2070608, 2588260, 4141216, 5176520, 8282432, 10353040, 16564864, 20706080, 33129728, 41412160, 82824320, 165648640]

約数ペア:

[(1, 165648640), (2, 82824320), (4, 41412160), (5, 33129728), (8, 20706080), (10, 16564864), (16, 10353040), (20, 8282432), (32, 5176520), (40, 4141216), (64, 2588260), (80, 2070608), (127, 1304320), (128, 1294130), (160, 1035304), (254, 652160), (256, 647065), (320, 517652), (508, 326080), (635, 260864), (640, 258826), (1016, 163040), (1019, 162560), (1270, 130432), (1280, 129413), (2032, 81520), (2038, 81280), (2540, 65216), (4064, 40760), (4076, 40640), (5080, 32608), (5095, 32512), (8128, 20380), (8152, 20320), (10160, 16304), (10190, 16256)]