20218121290

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1427}}^1\times {\mathrm{10193}}^1$

素因数の和:11766

約数の個数: 32

約数和(自身を含む): 36683720640

約数和(自身を除く): 16465599350

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 1427, 2854, 7135, 10193, 14270, 20386, 50965, 101930, 198353, 396706, 991765, 1416827, 1983530, 2833654, 7084135, 14168270, 14545411, 29090822, 72727055, 145454110, 2021812129, 4043624258, 10109060645, 20218121290]

約数ペア:

[(1, 20218121290), (2, 10109060645), (5, 4043624258), (10, 2021812129), (139, 145454110), (278, 72727055), (695, 29090822), (1390, 14545411), (1427, 14168270), (2854, 7084135), (7135, 2833654), (10193, 1983530), (14270, 1416827), (20386, 991765), (50965, 396706), (101930, 198353)]