20003025

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{5443}}^1$

素因数の和:5470

約数の個数: 36

約数和(自身を含む): 38478192

約数和(自身を除く): 18475167

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 525, 735, 1225, 3675, 5443, 16329, 27215, 38101, 81645, 114303, 136075, 190505, 266707, 408225, 571515, 800121, 952525, 1333535, 2857575, 4000605, 6667675, 20003025]

約数ペア:

[(1, 20003025), (3, 6667675), (5, 4000605), (7, 2857575), (15, 1333535), (21, 952525), (25, 800121), (35, 571515), (49, 408225), (75, 266707), (105, 190505), (147, 136075), (175, 114303), (245, 81645), (525, 38101), (735, 27215), (1225, 16329), (3675, 5443)]