81640020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:502

約数の個数: 192

約数和(自身を含む): 292626432

約数和(自身を除く): 210986412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 41, 42, 44, 55, 60, 66, 70, 77, 82, 84, 105, 110, 123, 132, 140, 154, 164, 165, 205, 210, 220, 231, 246, 287, 308, 330, 385, 410, 420, 431, 451, 462, 492, 574, 615, 660, 770, 820, 861, 862, 902, 924, 1148, 1155, 1230, 1293, 1353, 1435, 1540, 1722, 1724, 1804, 2155, 2255, 2310, 2460, 2586, 2706, 2870, 3017, 3157, 3444, 4305, 4310, 4510, 4620, 4741, 5172, 5412, 5740, 6034, 6314, 6465, 6765, 8610, 8620, 9020, 9051, 9471, 9482, 12068, 12628, 12930, 13530, 14223, 15085, 15785, 17220, 17671, 18102, 18942, 18964, 23705, 25860, 27060, 28446, 30170, 31570, 33187, 35342, 36204, 37884, 45255, 47355, 47410, 53013, 56892, 60340, 63140, 66374, 70684, 71115, 88355, 90510, 94710, 94820, 99561, 106026, 123697, 132748, 142230, 165935, 176710, 181020, 189420, 194381, 199122, 212052, 247394, 265065, 284460, 331870, 353420, 371091, 388762, 398244, 494788, 497805, 530130, 583143, 618485, 663740, 742182, 777524, 971905, 995610, 1060260, 1166286, 1236970, 1360667, 1484364, 1855455, 1943810, 1991220, 2332572, 2473940, 2721334, 2915715, 3710910, 3887620, 4082001, 5442668, 5831430, 6803335, 7421820, 8164002, 11662860, 13606670, 16328004, 20410005, 27213340, 40820010, 81640020]

約数ペア:

[(1, 81640020), (2, 40820010), (3, 27213340), (4, 20410005), (5, 16328004), (6, 13606670), (7, 11662860), (10, 8164002), (11, 7421820), (12, 6803335), (14, 5831430), (15, 5442668), (20, 4082001), (21, 3887620), (22, 3710910), (28, 2915715), (30, 2721334), (33, 2473940), (35, 2332572), (41, 1991220), (42, 1943810), (44, 1855455), (55, 1484364), (60, 1360667), (66, 1236970), (70, 1166286), (77, 1060260), (82, 995610), (84, 971905), (105, 777524), (110, 742182), (123, 663740), (132, 618485), (140, 583143), (154, 530130), (164, 497805), (165, 494788), (205, 398244), (210, 388762), (220, 371091), (231, 353420), (246, 331870), (287, 284460), (308, 265065), (330, 247394), (385, 212052), (410, 199122), (420, 194381), (431, 189420), (451, 181020), (462, 176710), (492, 165935), (574, 142230), (615, 132748), (660, 123697), (770, 106026), (820, 99561), (861, 94820), (862, 94710), (902, 90510), (924, 88355), (1148, 71115), (1155, 70684), (1230, 66374), (1293, 63140), (1353, 60340), (1435, 56892), (1540, 53013), (1722, 47410), (1724, 47355), (1804, 45255), (2155, 37884), (2255, 36204), (2310, 35342), (2460, 33187), (2586, 31570), (2706, 30170), (2870, 28446), (3017, 27060), (3157, 25860), (3444, 23705), (4305, 18964), (4310, 18942), (4510, 18102), (4620, 17671), (4741, 17220), (5172, 15785), (5412, 15085), (5740, 14223), (6034, 13530), (6314, 12930), (6465, 12628), (6765, 12068), (8610, 9482), (8620, 9471), (9020, 9051)]