18073040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:264

約数の個数: 80

約数和(自身を含む): 45278352

約数和(自身を除く): 27205312

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 97, 136, 137, 170, 194, 272, 274, 340, 388, 485, 548, 680, 685, 776, 970, 1096, 1360, 1370, 1552, 1649, 1940, 2192, 2329, 2740, 3298, 3880, 4658, 5480, 6596, 7760, 8245, 9316, 10960, 11645, 13192, 13289, 16490, 18632, 23290, 26384, 26578, 32980, 37264, 46580, 53156, 65960, 66445, 93160, 106312, 131920, 132890, 186320, 212624, 225913, 265780, 451826, 531560, 903652, 1063120, 1129565, 1807304, 2259130, 3614608, 4518260, 9036520, 18073040]

約数ペア:

[(1, 18073040), (2, 9036520), (4, 4518260), (5, 3614608), (8, 2259130), (10, 1807304), (16, 1129565), (17, 1063120), (20, 903652), (34, 531560), (40, 451826), (68, 265780), (80, 225913), (85, 212624), (97, 186320), (136, 132890), (137, 131920), (170, 106312), (194, 93160), (272, 66445), (274, 65960), (340, 53156), (388, 46580), (485, 37264), (548, 32980), (680, 26578), (685, 26384), (776, 23290), (970, 18632), (1096, 16490), (1360, 13289), (1370, 13192), (1552, 11645), (1649, 10960), (1940, 9316), (2192, 8245), (2329, 7760), (2740, 6596), (3298, 5480), (3880, 4658)]