1020425

素因数分解:

$5^2\times 7^4\times {\mathrm{17}}^1$

素因数の和:55

約数の個数: 30

約数和(自身を含む): 1562958

約数和(自身を除く): 542533

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 245, 343, 425, 595, 833, 1225, 1715, 2401, 2975, 4165, 5831, 8575, 12005, 20825, 29155, 40817, 60025, 145775, 204085, 1020425]

約数ペア:

[(1, 1020425), (5, 204085), (7, 145775), (17, 60025), (25, 40817), (35, 29155), (49, 20825), (85, 12005), (119, 8575), (175, 5831), (245, 4165), (343, 2975), (425, 2401), (595, 1715), (833, 1225)]