20512586535

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{200779}}^1$

素因数の和:200940

約数の個数: 48

約数和(自身を含む): 38453385600

約数和(自身を除く): 17940799065

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 139, 147, 245, 417, 695, 735, 973, 2085, 2919, 4865, 6811, 14595, 20433, 34055, 102165, 200779, 602337, 1003895, 1405453, 3011685, 4216359, 7027265, 9838171, 21081795, 27908281, 29514513, 49190855, 83724843, 139541405, 147572565, 195357967, 418624215, 586073901, 976789835, 1367505769, 2930369505, 4102517307, 6837528845, 20512586535]

約数ペア:

[(1, 20512586535), (3, 6837528845), (5, 4102517307), (7, 2930369505), (15, 1367505769), (21, 976789835), (35, 586073901), (49, 418624215), (105, 195357967), (139, 147572565), (147, 139541405), (245, 83724843), (417, 49190855), (695, 29514513), (735, 27908281), (973, 21081795), (2085, 9838171), (2919, 7027265), (4865, 4216359), (6811, 3011685), (14595, 1405453), (20433, 1003895), (34055, 602337), (102165, 200779)]