19137225

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 33212160

約数和(自身を除く): 14074935

約数列:

[1, 3, 5, 15, 25, 47, 61, 75, 89, 141, 183, 235, 267, 305, 445, 705, 915, 1175, 1335, 1525, 2225, 2867, 3525, 4183, 4575, 5429, 6675, 8601, 12549, 14335, 16287, 20915, 27145, 43005, 62745, 71675, 81435, 104575, 135725, 215025, 255163, 313725, 407175, 765489, 1275815, 3827445, 6379075, 19137225]

約数ペア:

[(1, 19137225), (3, 6379075), (5, 3827445), (15, 1275815), (25, 765489), (47, 407175), (61, 313725), (75, 255163), (89, 215025), (141, 135725), (183, 104575), (235, 81435), (267, 71675), (305, 62745), (445, 43005), (705, 27145), (915, 20915), (1175, 16287), (1335, 14335), (1525, 12549), (2225, 8601), (2867, 6675), (3525, 5429), (4183, 4575)]