80207820

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1$

素因数の和:682

約数の個数: 240

約数和(自身を含む): 314189568

約数和(自身を除く): 233981748

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, 643, 660, 693, 756, 770, 810, 891, 924, 945, 990, 1134, 1155, 1188, 1260, 1286, 1386, 1485, 1540, 1620, 1782, 1890, 1929, 1980, 2079, 2268, 2310, 2572, 2772, 2835, 2970, 3215, 3465, 3564, 3780, 3858, 4158, 4455, 4501, 4620, 5670, 5787, 5940, 6237, 6430, 6930, 7073, 7716, 8316, 8910, 9002, 9645, 10395, 11340, 11574, 12474, 12860, 13503, 13860, 14146, 17361, 17820, 18004, 19290, 20790, 21219, 22505, 23148, 24948, 27006, 28292, 28935, 31185, 34722, 35365, 38580, 40509, 41580, 42438, 45010, 49511, 52083, 54012, 57870, 62370, 63657, 67515, 69444, 70730, 81018, 84876, 86805, 90020, 99022, 104166, 106095, 115740, 121527, 124740, 127314, 135030, 141460, 148533, 162036, 173610, 190971, 198044, 202545, 208332, 212190, 243054, 247555, 254628, 260415, 270060, 297066, 318285, 347220, 364581, 381942, 405090, 424380, 445599, 486108, 495110, 520830, 572913, 594132, 607635, 636570, 729162, 742665, 763884, 810180, 891198, 954855, 990220, 1041660, 1145826, 1215270, 1273140, 1336797, 1458324, 1485330, 1782396, 1822905, 1909710, 2227995, 2291652, 2430540, 2673594, 2864565, 2970660, 3645810, 3819420, 4010391, 4455990, 5347188, 5729130, 6683985, 7291620, 8020782, 8911980, 11458260, 13367970, 16041564, 20051955, 26735940, 40103910, 80207820]

約数ペア:

[(1, 80207820), (2, 40103910), (3, 26735940), (4, 20051955), (5, 16041564), (6, 13367970), (7, 11458260), (9, 8911980), (10, 8020782), (11, 7291620), (12, 6683985), (14, 5729130), (15, 5347188), (18, 4455990), (20, 4010391), (21, 3819420), (22, 3645810), (27, 2970660), (28, 2864565), (30, 2673594), (33, 2430540), (35, 2291652), (36, 2227995), (42, 1909710), (44, 1822905), (45, 1782396), (54, 1485330), (55, 1458324), (60, 1336797), (63, 1273140), (66, 1215270), (70, 1145826), (77, 1041660), (81, 990220), (84, 954855), (90, 891198), (99, 810180), (105, 763884), (108, 742665), (110, 729162), (126, 636570), (132, 607635), (135, 594132), (140, 572913), (154, 520830), (162, 495110), (165, 486108), (180, 445599), (189, 424380), (198, 405090), (210, 381942), (220, 364581), (231, 347220), (252, 318285), (270, 297066), (297, 270060), (308, 260415), (315, 254628), (324, 247555), (330, 243054), (378, 212190), (385, 208332), (396, 202545), (405, 198044), (420, 190971), (462, 173610), (495, 162036), (540, 148533), (567, 141460), (594, 135030), (630, 127314), (643, 124740), (660, 121527), (693, 115740), (756, 106095), (770, 104166), (810, 99022), (891, 90020), (924, 86805), (945, 84876), (990, 81018), (1134, 70730), (1155, 69444), (1188, 67515), (1260, 63657), (1286, 62370), (1386, 57870), (1485, 54012), (1540, 52083), (1620, 49511), (1782, 45010), (1890, 42438), (1929, 41580), (1980, 40509), (2079, 38580), (2268, 35365), (2310, 34722), (2572, 31185), (2772, 28935), (2835, 28292), (2970, 27006), (3215, 24948), (3465, 23148), (3564, 22505), (3780, 21219), (3858, 20790), (4158, 19290), (4455, 18004), (4501, 17820), (4620, 17361), (5670, 14146), (5787, 13860), (5940, 13503), (6237, 12860), (6430, 12474), (6930, 11574), (7073, 11340), (7716, 10395), (8316, 9645), (8910, 9002)]