90768640

素因数分解:

$2^8\times 5^1\times {\mathrm{70913}}^1$

素因数の和:70934

約数の個数: 36

約数和(自身を含む): 217422324

約数和(自身を除く): 126653684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 70913, 141826, 283652, 354565, 567304, 709130, 1134608, 1418260, 2269216, 2836520, 4538432, 5673040, 9076864, 11346080, 18153728, 22692160, 45384320, 90768640]

約数ペア:

[(1, 90768640), (2, 45384320), (4, 22692160), (5, 18153728), (8, 11346080), (10, 9076864), (16, 5673040), (20, 4538432), (32, 2836520), (40, 2269216), (64, 1418260), (80, 1134608), (128, 709130), (160, 567304), (256, 354565), (320, 283652), (640, 141826), (1280, 70913)]