15971775

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 28283904

約数和(自身を除く): 12312129

約数列:

[1, 3, 5, 15, 23, 25, 47, 69, 75, 115, 141, 197, 235, 345, 575, 591, 705, 985, 1081, 1175, 1725, 2955, 3243, 3525, 4531, 4925, 5405, 9259, 13593, 14775, 16215, 22655, 27025, 27777, 46295, 67965, 81075, 113275, 138885, 212957, 231475, 339825, 638871, 694425, 1064785, 3194355, 5323925, 15971775]

約数ペア:

[(1, 15971775), (3, 5323925), (5, 3194355), (15, 1064785), (23, 694425), (25, 638871), (47, 339825), (69, 231475), (75, 212957), (115, 138885), (141, 113275), (197, 81075), (235, 67965), (345, 46295), (575, 27777), (591, 27025), (705, 22655), (985, 16215), (1081, 14775), (1175, 13593), (1725, 9259), (2955, 5405), (3243, 4925), (3525, 4531)]