80706780

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 240

約数和(自身を含む): 316141056

約数和(自身を除く): 235434276

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 27, 28, 30, 33, 35, 36, 42, 44, 45, 54, 55, 60, 63, 66, 70, 77, 81, 84, 90, 99, 105, 108, 110, 126, 132, 135, 140, 154, 162, 165, 180, 189, 198, 210, 220, 231, 252, 270, 297, 308, 315, 324, 330, 378, 385, 396, 405, 420, 462, 495, 540, 567, 594, 630, 647, 660, 693, 756, 770, 810, 891, 924, 945, 990, 1134, 1155, 1188, 1260, 1294, 1386, 1485, 1540, 1620, 1782, 1890, 1941, 1980, 2079, 2268, 2310, 2588, 2772, 2835, 2970, 3235, 3465, 3564, 3780, 3882, 4158, 4455, 4529, 4620, 5670, 5823, 5940, 6237, 6470, 6930, 7117, 7764, 8316, 8910, 9058, 9705, 10395, 11340, 11646, 12474, 12940, 13587, 13860, 14234, 17469, 17820, 18116, 19410, 20790, 21351, 22645, 23292, 24948, 27174, 28468, 29115, 31185, 34938, 35585, 38820, 40761, 41580, 42702, 45290, 49819, 52407, 54348, 58230, 62370, 64053, 67935, 69876, 71170, 81522, 85404, 87345, 90580, 99638, 104814, 106755, 116460, 122283, 124740, 128106, 135870, 142340, 149457, 163044, 174690, 192159, 199276, 203805, 209628, 213510, 244566, 249095, 256212, 262035, 271740, 298914, 320265, 349380, 366849, 384318, 407610, 427020, 448371, 489132, 498190, 524070, 576477, 597828, 611415, 640530, 733698, 747285, 768636, 815220, 896742, 960795, 996380, 1048140, 1152954, 1222830, 1281060, 1345113, 1467396, 1494570, 1793484, 1834245, 1921590, 2241855, 2305908, 2445660, 2690226, 2882385, 2989140, 3668490, 3843180, 4035339, 4483710, 5380452, 5764770, 6725565, 7336980, 8070678, 8967420, 11529540, 13451130, 16141356, 20176695, 26902260, 40353390, 80706780]

約数ペア:

[(1, 80706780), (2, 40353390), (3, 26902260), (4, 20176695), (5, 16141356), (6, 13451130), (7, 11529540), (9, 8967420), (10, 8070678), (11, 7336980), (12, 6725565), (14, 5764770), (15, 5380452), (18, 4483710), (20, 4035339), (21, 3843180), (22, 3668490), (27, 2989140), (28, 2882385), (30, 2690226), (33, 2445660), (35, 2305908), (36, 2241855), (42, 1921590), (44, 1834245), (45, 1793484), (54, 1494570), (55, 1467396), (60, 1345113), (63, 1281060), (66, 1222830), (70, 1152954), (77, 1048140), (81, 996380), (84, 960795), (90, 896742), (99, 815220), (105, 768636), (108, 747285), (110, 733698), (126, 640530), (132, 611415), (135, 597828), (140, 576477), (154, 524070), (162, 498190), (165, 489132), (180, 448371), (189, 427020), (198, 407610), (210, 384318), (220, 366849), (231, 349380), (252, 320265), (270, 298914), (297, 271740), (308, 262035), (315, 256212), (324, 249095), (330, 244566), (378, 213510), (385, 209628), (396, 203805), (405, 199276), (420, 192159), (462, 174690), (495, 163044), (540, 149457), (567, 142340), (594, 135870), (630, 128106), (647, 124740), (660, 122283), (693, 116460), (756, 106755), (770, 104814), (810, 99638), (891, 90580), (924, 87345), (945, 85404), (990, 81522), (1134, 71170), (1155, 69876), (1188, 67935), (1260, 64053), (1294, 62370), (1386, 58230), (1485, 54348), (1540, 52407), (1620, 49819), (1782, 45290), (1890, 42702), (1941, 41580), (1980, 40761), (2079, 38820), (2268, 35585), (2310, 34938), (2588, 31185), (2772, 29115), (2835, 28468), (2970, 27174), (3235, 24948), (3465, 23292), (3564, 22645), (3780, 21351), (3882, 20790), (4158, 19410), (4455, 18116), (4529, 17820), (4620, 17469), (5670, 14234), (5823, 13860), (5940, 13587), (6237, 12940), (6470, 12474), (6930, 11646), (7117, 11340), (7764, 10395), (8316, 9705), (8910, 9058)]