20432555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^2$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 31262112

約数和(自身を除く): 10829557

約数列:

[1, 5, 11, 13, 17, 41, 55, 65, 85, 143, 187, 205, 221, 451, 533, 697, 715, 935, 1105, 1681, 2255, 2431, 2665, 3485, 5863, 7667, 8405, 9061, 12155, 18491, 21853, 28577, 29315, 38335, 45305, 92455, 99671, 109265, 142885, 240383, 314347, 371501, 498355, 1201915, 1571735, 1857505, 4086511, 20432555]

約数ペア:

[(1, 20432555), (5, 4086511), (11, 1857505), (13, 1571735), (17, 1201915), (41, 498355), (55, 371501), (65, 314347), (85, 240383), (143, 142885), (187, 109265), (205, 99671), (221, 92455), (451, 45305), (533, 38335), (697, 29315), (715, 28577), (935, 21853), (1105, 18491), (1681, 12155), (2255, 9061), (2431, 8405), (2665, 7667), (3485, 5863)]