71258985

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1901}}^1$

素因数の和:1943

約数の個数: 72

約数和(自身を含む): 152213256

約数和(自身を除く): 80954271

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 63, 85, 105, 119, 147, 153, 245, 255, 315, 357, 441, 595, 735, 765, 833, 1071, 1785, 1901, 2205, 2499, 4165, 5355, 5703, 7497, 9505, 12495, 13307, 17109, 28515, 32317, 37485, 39921, 66535, 85545, 93149, 96951, 119763, 161585, 199605, 226219, 279447, 290853, 465745, 484755, 598815, 678657, 838341, 1131095, 1397235, 1454265, 1583533, 2035971, 3393285, 4191705, 4750599, 7917665, 10179855, 14251797, 23752995, 71258985]

約数ペア:

[(1, 71258985), (3, 23752995), (5, 14251797), (7, 10179855), (9, 7917665), (15, 4750599), (17, 4191705), (21, 3393285), (35, 2035971), (45, 1583533), (49, 1454265), (51, 1397235), (63, 1131095), (85, 838341), (105, 678657), (119, 598815), (147, 484755), (153, 465745), (245, 290853), (255, 279447), (315, 226219), (357, 199605), (441, 161585), (595, 119763), (735, 96951), (765, 93149), (833, 85545), (1071, 66535), (1785, 39921), (1901, 37485), (2205, 32317), (2499, 28515), (4165, 17109), (5355, 13307), (5703, 12495), (7497, 9505)]