18715672725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{506171}}^1$

素因数の和:506230

約数の個数: 48

約数和(自身を含む): 33893277120

約数和(自身を除く): 15177604395

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 725, 1275, 1479, 2175, 2465, 7395, 12325, 36975, 506171, 1518513, 2530855, 7592565, 8604907, 12654275, 14678959, 25814721, 37962825, 43024535, 44036877, 73394795, 129073605, 215122675, 220184385, 249542303, 366973975, 645368025, 748626909, 1100921925, 1247711515, 3743134545, 6238557575, 18715672725]

約数ペア:

[(1, 18715672725), (3, 6238557575), (5, 3743134545), (15, 1247711515), (17, 1100921925), (25, 748626909), (29, 645368025), (51, 366973975), (75, 249542303), (85, 220184385), (87, 215122675), (145, 129073605), (255, 73394795), (425, 44036877), (435, 43024535), (493, 37962825), (725, 25814721), (1275, 14678959), (1479, 12654275), (2175, 8604907), (2465, 7592565), (7395, 2530855), (12325, 1518513), (36975, 506171)]