200020005

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{25693}}^1$

素因数の和:25877

約数の個数: 24

約数和(自身を含む): 348718968

約数和(自身を除く): 148698963

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 7785, 25693, 77079, 128465, 231237, 385395, 1156185, 4444889, 13334667, 22224445, 40004001, 66673335, 200020005]

約数ペア:

[(1, 200020005), (3, 66673335), (5, 40004001), (9, 22224445), (15, 13334667), (45, 4444889), (173, 1156185), (519, 385395), (865, 231237), (1557, 128465), (2595, 77079), (7785, 25693)]