17725815

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 34482240

約数和(自身を除く): 16756425

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 47, 51, 85, 87, 141, 145, 153, 235, 255, 261, 289, 423, 435, 493, 705, 765, 799, 867, 1305, 1363, 1445, 1479, 2115, 2397, 2465, 2601, 3995, 4089, 4335, 4437, 6815, 7191, 7395, 8381, 11985, 12267, 13005, 13583, 20445, 22185, 23171, 25143, 35955, 40749, 41905, 61335, 67915, 69513, 75429, 115855, 122247, 125715, 203745, 208539, 347565, 377145, 393907, 611235, 1042695, 1181721, 1969535, 3545163, 5908605, 17725815]

約数ペア:

[(1, 17725815), (3, 5908605), (5, 3545163), (9, 1969535), (15, 1181721), (17, 1042695), (29, 611235), (45, 393907), (47, 377145), (51, 347565), (85, 208539), (87, 203745), (141, 125715), (145, 122247), (153, 115855), (235, 75429), (255, 69513), (261, 67915), (289, 61335), (423, 41905), (435, 40749), (493, 35955), (705, 25143), (765, 23171), (799, 22185), (867, 20445), (1305, 13583), (1363, 13005), (1445, 12267), (1479, 11985), (2115, 8381), (2397, 7395), (2465, 7191), (2601, 6815), (3995, 4437), (4089, 4335)]