20103680

素因数分解:

$2^9\times 5^1\times {\mathrm{7853}}^1$

素因数の和:7876

約数の個数: 40

約数和(自身を含む): 48207852

約数和(自身を除く): 28104172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7853, 15706, 31412, 39265, 62824, 78530, 125648, 157060, 251296, 314120, 502592, 628240, 1005184, 1256480, 2010368, 2512960, 4020736, 5025920, 10051840, 20103680]

約数ペア:

[(1, 20103680), (2, 10051840), (4, 5025920), (5, 4020736), (8, 2512960), (10, 2010368), (16, 1256480), (20, 1005184), (32, 628240), (40, 502592), (64, 314120), (80, 251296), (128, 157060), (160, 125648), (256, 78530), (320, 62824), (512, 39265), (640, 31412), (1280, 15706), (2560, 7853)]