20537175

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{67}}^2$

素因数の和:208

約数の個数: 36

約数和(自身を含む): 35034216

約数和(自身を除く): 14497041

約数列:

[1, 3, 5, 15, 25, 61, 67, 75, 183, 201, 305, 335, 915, 1005, 1525, 1675, 4087, 4489, 4575, 5025, 12261, 13467, 20435, 22445, 61305, 67335, 102175, 112225, 273829, 306525, 336675, 821487, 1369145, 4107435, 6845725, 20537175]

約数ペア:

[(1, 20537175), (3, 6845725), (5, 4107435), (15, 1369145), (25, 821487), (61, 336675), (67, 306525), (75, 273829), (183, 112225), (201, 102175), (305, 67335), (335, 61305), (915, 22445), (1005, 20435), (1525, 13467), (1675, 12261), (4087, 5025), (4489, 4575)]