28505520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 200

約数和(自身を含む): 102087216

約数和(自身を除く): 73581696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 53, 54, 60, 72, 80, 81, 83, 90, 106, 108, 120, 135, 144, 159, 162, 166, 180, 212, 216, 240, 249, 265, 270, 318, 324, 332, 360, 405, 415, 424, 432, 477, 498, 530, 540, 636, 648, 664, 720, 747, 795, 810, 830, 848, 954, 996, 1060, 1080, 1245, 1272, 1296, 1328, 1431, 1494, 1590, 1620, 1660, 1908, 1992, 2120, 2160, 2241, 2385, 2490, 2544, 2862, 2988, 3180, 3240, 3320, 3735, 3816, 3984, 4240, 4293, 4399, 4482, 4770, 4980, 5724, 5976, 6360, 6480, 6640, 6723, 7155, 7470, 7632, 8586, 8798, 8964, 9540, 9960, 11205, 11448, 11952, 12720, 13197, 13446, 14310, 14940, 17172, 17596, 17928, 19080, 19920, 21465, 21995, 22410, 22896, 26394, 26892, 28620, 29880, 33615, 34344, 35192, 35856, 38160, 39591, 42930, 43990, 44820, 52788, 53784, 57240, 59760, 65985, 67230, 68688, 70384, 79182, 85860, 87980, 89640, 105576, 107568, 114480, 118773, 131970, 134460, 158364, 171720, 175960, 179280, 197955, 211152, 237546, 263940, 268920, 316728, 343440, 351920, 356319, 395910, 475092, 527880, 537840, 593865, 633456, 712638, 791820, 950184, 1055760, 1187730, 1425276, 1583640, 1781595, 1900368, 2375460, 2850552, 3167280, 3563190, 4750920, 5701104, 7126380, 9501840, 14252760, 28505520]

約数ペア:

[(1, 28505520), (2, 14252760), (3, 9501840), (4, 7126380), (5, 5701104), (6, 4750920), (8, 3563190), (9, 3167280), (10, 2850552), (12, 2375460), (15, 1900368), (16, 1781595), (18, 1583640), (20, 1425276), (24, 1187730), (27, 1055760), (30, 950184), (36, 791820), (40, 712638), (45, 633456), (48, 593865), (53, 537840), (54, 527880), (60, 475092), (72, 395910), (80, 356319), (81, 351920), (83, 343440), (90, 316728), (106, 268920), (108, 263940), (120, 237546), (135, 211152), (144, 197955), (159, 179280), (162, 175960), (166, 171720), (180, 158364), (212, 134460), (216, 131970), (240, 118773), (249, 114480), (265, 107568), (270, 105576), (318, 89640), (324, 87980), (332, 85860), (360, 79182), (405, 70384), (415, 68688), (424, 67230), (432, 65985), (477, 59760), (498, 57240), (530, 53784), (540, 52788), (636, 44820), (648, 43990), (664, 42930), (720, 39591), (747, 38160), (795, 35856), (810, 35192), (830, 34344), (848, 33615), (954, 29880), (996, 28620), (1060, 26892), (1080, 26394), (1245, 22896), (1272, 22410), (1296, 21995), (1328, 21465), (1431, 19920), (1494, 19080), (1590, 17928), (1620, 17596), (1660, 17172), (1908, 14940), (1992, 14310), (2120, 13446), (2160, 13197), (2241, 12720), (2385, 11952), (2490, 11448), (2544, 11205), (2862, 9960), (2988, 9540), (3180, 8964), (3240, 8798), (3320, 8586), (3735, 7632), (3816, 7470), (3984, 7155), (4240, 6723), (4293, 6640), (4399, 6480), (4482, 6360), (4770, 5976), (4980, 5724)]