20326365

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 17413155

約数列:

[1, 3, 5, 9, 15, 23, 41, 45, 69, 115, 123, 205, 207, 345, 369, 479, 615, 943, 1035, 1437, 1845, 2395, 2829, 4311, 4715, 7185, 8487, 11017, 14145, 19639, 21555, 33051, 42435, 55085, 58917, 98195, 99153, 165255, 176751, 294585, 451697, 495765, 883755, 1355091, 2258485, 4065273, 6775455, 20326365]

約数ペア:

[(1, 20326365), (3, 6775455), (5, 4065273), (9, 2258485), (15, 1355091), (23, 883755), (41, 495765), (45, 451697), (69, 294585), (115, 176751), (123, 165255), (205, 99153), (207, 98195), (345, 58917), (369, 55085), (479, 42435), (615, 33051), (943, 21555), (1035, 19639), (1437, 14145), (1845, 11017), (2395, 8487), (2829, 7185), (4311, 4715)]