20406075

素因数分解:

$3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1733}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 33972528

約数和(自身を除く): 13566453

約数列:

[1, 3, 5, 15, 25, 75, 157, 471, 785, 1733, 2355, 3925, 5199, 8665, 11775, 25995, 43325, 129975, 272081, 816243, 1360405, 4081215, 6802025, 20406075]

約数ペア:

[(1, 20406075), (3, 6802025), (5, 4081215), (15, 1360405), (25, 816243), (75, 272081), (157, 129975), (471, 43325), (785, 25995), (1733, 11775), (2355, 8665), (3925, 5199)]