20178794804

素因数分解:

$2^2\times 7^1\times {\mathrm{1637}}^1\times {\mathrm{440239}}^1$

素因数の和:441887

約数の個数: 24

約数和(自身を含む): 40382334720

約数和(自身を除く): 20203539916

約数列:

[1, 2, 4, 7, 14, 28, 1637, 3274, 6548, 11459, 22918, 45836, 440239, 880478, 1760956, 3081673, 6163346, 12326692, 720671243, 1441342486, 2882684972, 5044698701, 10089397402, 20178794804]

約数ペア:

[(1, 20178794804), (2, 10089397402), (4, 5044698701), (7, 2882684972), (14, 1441342486), (28, 720671243), (1637, 12326692), (3274, 6163346), (6548, 3081673), (11459, 1760956), (22918, 880478), (45836, 440239)]