19803225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1069}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 37150400

約数和(自身を除く): 17347175

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1069, 1235, 1425, 3207, 3705, 5345, 6175, 13897, 16035, 18525, 20311, 26725, 41691, 60933, 69485, 80175, 101555, 208455, 264043, 304665, 347425, 507775, 792129, 1042275, 1320215, 1523325, 3960645, 6601075, 19803225]

約数ペア:

[(1, 19803225), (3, 6601075), (5, 3960645), (13, 1523325), (15, 1320215), (19, 1042275), (25, 792129), (39, 507775), (57, 347425), (65, 304665), (75, 264043), (95, 208455), (195, 101555), (247, 80175), (285, 69485), (325, 60933), (475, 41691), (741, 26725), (975, 20311), (1069, 18525), (1235, 16035), (1425, 13897), (3207, 6175), (3705, 5345)]