16021775

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 26717040

約数和(自身を除く): 10695265

約数列:

[1, 5, 7, 11, 25, 29, 35, 41, 49, 55, 77, 145, 175, 203, 205, 245, 275, 287, 319, 385, 451, 539, 725, 1015, 1025, 1189, 1225, 1421, 1435, 1595, 1925, 2009, 2233, 2255, 2695, 3157, 5075, 5945, 7105, 7175, 7975, 8323, 10045, 11165, 11275, 13079, 13475, 15631, 15785, 22099, 29725, 35525, 41615, 50225, 55825, 58261, 65395, 78155, 78925, 91553, 110495, 208075, 291305, 326975, 390775, 457765, 552475, 640871, 1456525, 2288825, 3204355, 16021775]

約数ペア:

[(1, 16021775), (5, 3204355), (7, 2288825), (11, 1456525), (25, 640871), (29, 552475), (35, 457765), (41, 390775), (49, 326975), (55, 291305), (77, 208075), (145, 110495), (175, 91553), (203, 78925), (205, 78155), (245, 65395), (275, 58261), (287, 55825), (319, 50225), (385, 41615), (451, 35525), (539, 29725), (725, 22099), (1015, 15785), (1025, 15631), (1189, 13475), (1225, 13079), (1421, 11275), (1435, 11165), (1595, 10045), (1925, 8323), (2009, 7975), (2233, 7175), (2255, 7105), (2695, 5945), (3157, 5075)]