519942025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1237}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 729489024

約数和(自身を除く): 209546999

約数列:

[1, 5, 17, 23, 25, 43, 85, 115, 215, 391, 425, 575, 731, 989, 1075, 1237, 1955, 3655, 4945, 6185, 9775, 16813, 18275, 21029, 24725, 28451, 30925, 53191, 84065, 105145, 142255, 265955, 420325, 483667, 525725, 711275, 904247, 1223393, 1329775, 2418335, 4521235, 6116965, 12091675, 20797681, 22606175, 30584825, 103988405, 519942025]

約数ペア:

[(1, 519942025), (5, 103988405), (17, 30584825), (23, 22606175), (25, 20797681), (43, 12091675), (85, 6116965), (115, 4521235), (215, 2418335), (391, 1329775), (425, 1223393), (575, 904247), (731, 711275), (989, 525725), (1075, 483667), (1237, 420325), (1955, 265955), (3655, 142255), (4945, 105145), (6185, 84065), (9775, 53191), (16813, 30925), (18275, 28451), (21029, 24725)]