81609660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1249}}^1$

素因数の和:1289

約数の個数: 144

約数和(自身を含む): 279300000

約数和(自身を除く): 197690340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 121, 132, 135, 165, 180, 198, 220, 242, 270, 297, 330, 363, 396, 484, 495, 540, 594, 605, 660, 726, 990, 1089, 1188, 1210, 1249, 1452, 1485, 1815, 1980, 2178, 2420, 2498, 2970, 3267, 3630, 3747, 4356, 4996, 5445, 5940, 6245, 6534, 7260, 7494, 10890, 11241, 12490, 13068, 13739, 14988, 16335, 18735, 21780, 22482, 24980, 27478, 32670, 33723, 37470, 41217, 44964, 54956, 56205, 65340, 67446, 68695, 74940, 82434, 112410, 123651, 134892, 137390, 151129, 164868, 168615, 206085, 224820, 247302, 274780, 302258, 337230, 370953, 412170, 453387, 494604, 604516, 618255, 674460, 741906, 755645, 824340, 906774, 1236510, 1360161, 1483812, 1511290, 1813548, 1854765, 2266935, 2473020, 2720322, 3022580, 3709530, 4080483, 4533870, 5440644, 6800805, 7419060, 8160966, 9067740, 13601610, 16321932, 20402415, 27203220, 40804830, 81609660]

約数ペア:

[(1, 81609660), (2, 40804830), (3, 27203220), (4, 20402415), (5, 16321932), (6, 13601610), (9, 9067740), (10, 8160966), (11, 7419060), (12, 6800805), (15, 5440644), (18, 4533870), (20, 4080483), (22, 3709530), (27, 3022580), (30, 2720322), (33, 2473020), (36, 2266935), (44, 1854765), (45, 1813548), (54, 1511290), (55, 1483812), (60, 1360161), (66, 1236510), (90, 906774), (99, 824340), (108, 755645), (110, 741906), (121, 674460), (132, 618255), (135, 604516), (165, 494604), (180, 453387), (198, 412170), (220, 370953), (242, 337230), (270, 302258), (297, 274780), (330, 247302), (363, 224820), (396, 206085), (484, 168615), (495, 164868), (540, 151129), (594, 137390), (605, 134892), (660, 123651), (726, 112410), (990, 82434), (1089, 74940), (1188, 68695), (1210, 67446), (1249, 65340), (1452, 56205), (1485, 54956), (1815, 44964), (1980, 41217), (2178, 37470), (2420, 33723), (2498, 32670), (2970, 27478), (3267, 24980), (3630, 22482), (3747, 21780), (4356, 18735), (4996, 16335), (5445, 14988), (5940, 13739), (6245, 13068), (6534, 12490), (7260, 11241), (7494, 10890)]