20227025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 32747904

約数和(自身を除く): 12520879

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 119, 175, 221, 325, 425, 455, 523, 595, 1105, 1547, 2275, 2615, 2975, 3661, 5525, 6799, 7735, 8891, 13075, 18305, 33995, 38675, 44455, 47593, 62237, 91525, 115583, 169975, 222275, 237965, 311185, 577915, 809081, 1189825, 1555925, 2889575, 4045405, 20227025]

約数ペア:

[(1, 20227025), (5, 4045405), (7, 2889575), (13, 1555925), (17, 1189825), (25, 809081), (35, 577915), (65, 311185), (85, 237965), (91, 222275), (119, 169975), (175, 115583), (221, 91525), (325, 62237), (425, 47593), (455, 44455), (523, 38675), (595, 33995), (1105, 18305), (1547, 13075), (2275, 8891), (2615, 7735), (2975, 6799), (3661, 5525)]