19481575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1993}}^1$

素因数の和:2043

約数の個数: 24

約数和(自身を含む): 26703648

約数和(自身を除く): 7222073

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1955, 1993, 9775, 9965, 33881, 45839, 49825, 169405, 229195, 779263, 847025, 1145975, 3896315, 19481575]

約数ペア:

[(1, 19481575), (5, 3896315), (17, 1145975), (23, 847025), (25, 779263), (85, 229195), (115, 169405), (391, 49825), (425, 45839), (575, 33881), (1955, 9965), (1993, 9775)]