15780609985

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71647}}^1$

素因数の和:71726

約数の個数: 48

約数和(自身を含む): 23523471360

約数和(自身を除く): 7742861375

約数列:

[1, 5, 7, 29, 31, 35, 49, 145, 155, 203, 217, 245, 899, 1015, 1085, 1421, 1519, 4495, 6293, 7105, 7595, 31465, 44051, 71647, 220255, 358235, 501529, 2077763, 2221057, 2507645, 3510703, 10388815, 11105285, 14544341, 15547399, 17553515, 64410653, 72721705, 77736995, 101810387, 108831793, 322053265, 450874571, 509051935, 544158965, 2254372855, 3156121997, 15780609985]

約数ペア:

[(1, 15780609985), (5, 3156121997), (7, 2254372855), (29, 544158965), (31, 509051935), (35, 450874571), (49, 322053265), (145, 108831793), (155, 101810387), (203, 77736995), (217, 72721705), (245, 64410653), (899, 17553515), (1015, 15547399), (1085, 14544341), (1421, 11105285), (1519, 10388815), (4495, 3510703), (6293, 2507645), (7105, 2221057), (7595, 2077763), (31465, 501529), (44051, 358235), (71647, 220255)]