255298890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 256

約数和(自身を含む): 819486720

約数和(自身を除く): 564187830

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 29, 30, 33, 35, 37, 42, 55, 58, 66, 70, 74, 77, 87, 103, 105, 110, 111, 145, 154, 165, 174, 185, 203, 206, 210, 222, 231, 259, 290, 309, 319, 330, 370, 385, 406, 407, 435, 462, 515, 518, 555, 609, 618, 638, 721, 770, 777, 814, 870, 957, 1015, 1030, 1073, 1110, 1133, 1155, 1218, 1221, 1295, 1442, 1545, 1554, 1595, 1914, 2030, 2035, 2146, 2163, 2233, 2266, 2310, 2442, 2590, 2849, 2987, 3045, 3090, 3190, 3219, 3399, 3605, 3811, 3885, 4070, 4326, 4466, 4785, 5365, 5665, 5698, 5974, 6090, 6105, 6438, 6699, 6798, 7210, 7511, 7622, 7770, 7931, 8547, 8961, 9570, 10730, 10815, 11165, 11330, 11433, 11803, 12210, 13398, 14245, 14935, 15022, 15862, 16095, 16995, 17094, 17922, 19055, 20909, 21630, 22330, 22533, 22866, 23606, 23793, 26677, 28490, 29870, 32190, 32857, 33495, 33990, 35409, 37555, 38110, 39655, 41818, 41921, 42735, 44805, 45066, 47586, 53354, 57165, 59015, 62727, 65714, 66990, 70818, 75110, 79310, 80031, 82621, 83842, 85470, 89610, 98571, 104545, 110519, 112665, 114330, 118030, 118965, 125454, 125763, 133385, 160062, 164285, 165242, 177045, 197142, 209090, 209605, 221038, 225330, 229999, 237930, 247863, 251526, 266770, 293447, 313635, 328570, 331557, 354090, 400155, 413105, 419210, 459998, 492855, 495726, 552595, 586894, 627270, 628815, 663114, 689997, 773633, 800310, 826210, 880341, 985710, 1105190, 1149995, 1215709, 1239315, 1257630, 1379994, 1467235, 1547266, 1657785, 1760682, 2299990, 2320899, 2431418, 2478630, 2934470, 3315570, 3449985, 3647127, 3868165, 4401705, 4641798, 6078545, 6899970, 7294254, 7736330, 8509963, 8803410, 11604495, 12157090, 17019926, 18235635, 23208990, 25529889, 36471270, 42549815, 51059778, 85099630, 127649445, 255298890]

約数ペア:

[(1, 255298890), (2, 127649445), (3, 85099630), (5, 51059778), (6, 42549815), (7, 36471270), (10, 25529889), (11, 23208990), (14, 18235635), (15, 17019926), (21, 12157090), (22, 11604495), (29, 8803410), (30, 8509963), (33, 7736330), (35, 7294254), (37, 6899970), (42, 6078545), (55, 4641798), (58, 4401705), (66, 3868165), (70, 3647127), (74, 3449985), (77, 3315570), (87, 2934470), (103, 2478630), (105, 2431418), (110, 2320899), (111, 2299990), (145, 1760682), (154, 1657785), (165, 1547266), (174, 1467235), (185, 1379994), (203, 1257630), (206, 1239315), (210, 1215709), (222, 1149995), (231, 1105190), (259, 985710), (290, 880341), (309, 826210), (319, 800310), (330, 773633), (370, 689997), (385, 663114), (406, 628815), (407, 627270), (435, 586894), (462, 552595), (515, 495726), (518, 492855), (555, 459998), (609, 419210), (618, 413105), (638, 400155), (721, 354090), (770, 331557), (777, 328570), (814, 313635), (870, 293447), (957, 266770), (1015, 251526), (1030, 247863), (1073, 237930), (1110, 229999), (1133, 225330), (1155, 221038), (1218, 209605), (1221, 209090), (1295, 197142), (1442, 177045), (1545, 165242), (1554, 164285), (1595, 160062), (1914, 133385), (2030, 125763), (2035, 125454), (2146, 118965), (2163, 118030), (2233, 114330), (2266, 112665), (2310, 110519), (2442, 104545), (2590, 98571), (2849, 89610), (2987, 85470), (3045, 83842), (3090, 82621), (3190, 80031), (3219, 79310), (3399, 75110), (3605, 70818), (3811, 66990), (3885, 65714), (4070, 62727), (4326, 59015), (4466, 57165), (4785, 53354), (5365, 47586), (5665, 45066), (5698, 44805), (5974, 42735), (6090, 41921), (6105, 41818), (6438, 39655), (6699, 38110), (6798, 37555), (7210, 35409), (7511, 33990), (7622, 33495), (7770, 32857), (7931, 32190), (8547, 29870), (8961, 28490), (9570, 26677), (10730, 23793), (10815, 23606), (11165, 22866), (11330, 22533), (11433, 22330), (11803, 21630), (12210, 20909), (13398, 19055), (14245, 17922), (14935, 17094), (15022, 16995), (15862, 16095)]