1813425920

素因数分解:

$2^8\times 5^1\times {\mathrm{1416739}}^1$

素因数の和:1416760

約数の個数: 36

約数和(自身を含む): 4343724840

約数和(自身を除く): 2530298920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1416739, 2833478, 5666956, 7083695, 11333912, 14167390, 22667824, 28334780, 45335648, 56669560, 90671296, 113339120, 181342592, 226678240, 362685184, 453356480, 906712960, 1813425920]

約数ペア:

[(1, 1813425920), (2, 906712960), (4, 453356480), (5, 362685184), (8, 226678240), (10, 181342592), (16, 113339120), (20, 90671296), (32, 56669560), (40, 45335648), (64, 28334780), (80, 22667824), (128, 14167390), (160, 11333912), (256, 7083695), (320, 5666956), (640, 2833478), (1280, 1416739)]