81373815

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:310

約数の個数: 80

約数和(自身を含む): 158070528

約数和(自身を除く): 76696713

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 81, 85, 135, 153, 159, 223, 255, 265, 405, 459, 477, 669, 765, 795, 901, 1115, 1377, 1431, 2007, 2295, 2385, 2703, 3345, 3791, 4293, 4505, 6021, 6885, 7155, 8109, 10035, 11373, 11819, 13515, 18063, 18955, 21465, 24327, 30105, 34119, 35457, 40545, 56865, 59095, 72981, 90315, 102357, 106371, 121635, 170595, 177285, 200923, 307071, 319113, 364905, 511785, 531855, 602769, 957339, 1004615, 1535355, 1595565, 1808307, 3013845, 4786695, 5424921, 9041535, 16274763, 27124605, 81373815]

約数ペア:

[(1, 81373815), (3, 27124605), (5, 16274763), (9, 9041535), (15, 5424921), (17, 4786695), (27, 3013845), (45, 1808307), (51, 1595565), (53, 1535355), (81, 1004615), (85, 957339), (135, 602769), (153, 531855), (159, 511785), (223, 364905), (255, 319113), (265, 307071), (405, 200923), (459, 177285), (477, 170595), (669, 121635), (765, 106371), (795, 102357), (901, 90315), (1115, 72981), (1377, 59095), (1431, 56865), (2007, 40545), (2295, 35457), (2385, 34119), (2703, 30105), (3345, 24327), (3791, 21465), (4293, 18955), (4505, 18063), (6021, 13515), (6885, 11819), (7155, 11373), (8109, 10035)]