81265275

素因数分解:

$3^6\times 5^2\times 7^3\times {\mathrm{13}}^1$

素因数の和:62

約数の個数: 168

約数和(自身を含む): 189744800

約数和(自身を除く): 108479525

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 45, 49, 63, 65, 75, 81, 91, 105, 117, 135, 147, 175, 189, 195, 225, 243, 245, 273, 315, 325, 343, 351, 405, 441, 455, 525, 567, 585, 637, 675, 729, 735, 819, 945, 975, 1029, 1053, 1215, 1225, 1323, 1365, 1575, 1701, 1715, 1755, 1911, 2025, 2205, 2275, 2457, 2835, 2925, 3087, 3159, 3185, 3645, 3675, 3969, 4095, 4459, 4725, 5103, 5145, 5265, 5733, 6075, 6615, 6825, 7371, 8505, 8575, 8775, 9261, 9477, 9555, 11025, 11907, 12285, 13377, 14175, 15435, 15795, 15925, 17199, 18225, 19845, 20475, 22113, 22295, 25515, 25725, 26325, 27783, 28665, 33075, 35721, 36855, 40131, 42525, 46305, 47385, 47775, 51597, 59535, 61425, 66339, 66885, 77175, 78975, 83349, 85995, 99225, 110565, 111475, 120393, 127575, 138915, 143325, 154791, 178605, 184275, 200655, 231525, 236925, 250047, 257985, 297675, 331695, 334425, 361179, 416745, 429975, 464373, 552825, 601965, 694575, 773955, 893025, 1003275, 1083537, 1250235, 1289925, 1658475, 1805895, 2083725, 2321865, 3009825, 3250611, 3869775, 5417685, 6251175, 9029475, 11609325, 16253055, 27088425, 81265275]

約数ペア:

[(1, 81265275), (3, 27088425), (5, 16253055), (7, 11609325), (9, 9029475), (13, 6251175), (15, 5417685), (21, 3869775), (25, 3250611), (27, 3009825), (35, 2321865), (39, 2083725), (45, 1805895), (49, 1658475), (63, 1289925), (65, 1250235), (75, 1083537), (81, 1003275), (91, 893025), (105, 773955), (117, 694575), (135, 601965), (147, 552825), (175, 464373), (189, 429975), (195, 416745), (225, 361179), (243, 334425), (245, 331695), (273, 297675), (315, 257985), (325, 250047), (343, 236925), (351, 231525), (405, 200655), (441, 184275), (455, 178605), (525, 154791), (567, 143325), (585, 138915), (637, 127575), (675, 120393), (729, 111475), (735, 110565), (819, 99225), (945, 85995), (975, 83349), (1029, 78975), (1053, 77175), (1215, 66885), (1225, 66339), (1323, 61425), (1365, 59535), (1575, 51597), (1701, 47775), (1715, 47385), (1755, 46305), (1911, 42525), (2025, 40131), (2205, 36855), (2275, 35721), (2457, 33075), (2835, 28665), (2925, 27783), (3087, 26325), (3159, 25725), (3185, 25515), (3645, 22295), (3675, 22113), (3969, 20475), (4095, 19845), (4459, 18225), (4725, 17199), (5103, 15925), (5145, 15795), (5265, 15435), (5733, 14175), (6075, 13377), (6615, 12285), (6825, 11907), (7371, 11025), (8505, 9555), (8575, 9477), (8775, 9261)]