1636690940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1\times {\mathrm{2969}}^1$

素因数の和:3662

約数の個数: 48

約数和(自身を含む): 3523655520

約数和(自身を除く): 1886964580

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 641, 860, 1282, 2564, 2969, 3205, 5938, 6410, 11876, 12820, 14845, 27563, 29690, 55126, 59380, 110252, 127667, 137815, 255334, 275630, 510668, 551260, 638335, 1276670, 1903129, 2553340, 3806258, 7612516, 9515645, 19031290, 38062580, 81834547, 163669094, 327338188, 409172735, 818345470, 1636690940]

約数ペア:

[(1, 1636690940), (2, 818345470), (4, 409172735), (5, 327338188), (10, 163669094), (20, 81834547), (43, 38062580), (86, 19031290), (172, 9515645), (215, 7612516), (430, 3806258), (641, 2553340), (860, 1903129), (1282, 1276670), (2564, 638335), (2969, 551260), (3205, 510668), (5938, 275630), (6410, 255334), (11876, 137815), (12820, 127667), (14845, 110252), (27563, 59380), (29690, 55126)]