256407690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 192

約数和(自身を含む): 793680768

約数和(自身を除く): 537273078

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 49, 55, 66, 70, 77, 98, 101, 105, 110, 147, 154, 157, 165, 202, 210, 231, 245, 294, 303, 314, 330, 385, 462, 471, 490, 505, 539, 606, 707, 735, 770, 785, 942, 1010, 1078, 1099, 1111, 1155, 1414, 1470, 1515, 1570, 1617, 1727, 2121, 2198, 2222, 2310, 2355, 2695, 3030, 3234, 3297, 3333, 3454, 3535, 4242, 4710, 4949, 5181, 5390, 5495, 5555, 6594, 6666, 7070, 7693, 7777, 8085, 8635, 9898, 10362, 10605, 10990, 11110, 12089, 14847, 15386, 15554, 15857, 16170, 16485, 16665, 17270, 21210, 23079, 23331, 24178, 24745, 25905, 29694, 31714, 32970, 33330, 36267, 38465, 38885, 46158, 46662, 47571, 49490, 51810, 54439, 60445, 72534, 74235, 76930, 77770, 79285, 84623, 95142, 108878, 110999, 115395, 116655, 120890, 148470, 158570, 163317, 169246, 174427, 181335, 221998, 230790, 233310, 237855, 253869, 272195, 326634, 332997, 348854, 362670, 423115, 475710, 507738, 523281, 544390, 554995, 665994, 776993, 816585, 846230, 872135, 1046562, 1109990, 1220989, 1269345, 1553986, 1633170, 1664985, 1744270, 2330979, 2441978, 2538690, 2616405, 3329970, 3662967, 3884965, 4661958, 5232810, 6104945, 7325934, 7769930, 8546923, 11654895, 12209890, 17093846, 18314835, 23309790, 25640769, 36629670, 42734615, 51281538, 85469230, 128203845, 256407690]

約数ペア:

[(1, 256407690), (2, 128203845), (3, 85469230), (5, 51281538), (6, 42734615), (7, 36629670), (10, 25640769), (11, 23309790), (14, 18314835), (15, 17093846), (21, 12209890), (22, 11654895), (30, 8546923), (33, 7769930), (35, 7325934), (42, 6104945), (49, 5232810), (55, 4661958), (66, 3884965), (70, 3662967), (77, 3329970), (98, 2616405), (101, 2538690), (105, 2441978), (110, 2330979), (147, 1744270), (154, 1664985), (157, 1633170), (165, 1553986), (202, 1269345), (210, 1220989), (231, 1109990), (245, 1046562), (294, 872135), (303, 846230), (314, 816585), (330, 776993), (385, 665994), (462, 554995), (471, 544390), (490, 523281), (505, 507738), (539, 475710), (606, 423115), (707, 362670), (735, 348854), (770, 332997), (785, 326634), (942, 272195), (1010, 253869), (1078, 237855), (1099, 233310), (1111, 230790), (1155, 221998), (1414, 181335), (1470, 174427), (1515, 169246), (1570, 163317), (1617, 158570), (1727, 148470), (2121, 120890), (2198, 116655), (2222, 115395), (2310, 110999), (2355, 108878), (2695, 95142), (3030, 84623), (3234, 79285), (3297, 77770), (3333, 76930), (3454, 74235), (3535, 72534), (4242, 60445), (4710, 54439), (4949, 51810), (5181, 49490), (5390, 47571), (5495, 46662), (5555, 46158), (6594, 38885), (6666, 38465), (7070, 36267), (7693, 33330), (7777, 32970), (8085, 31714), (8635, 29694), (9898, 25905), (10362, 24745), (10605, 24178), (10990, 23331), (11110, 23079), (12089, 21210), (14847, 17270), (15386, 16665), (15554, 16485), (15857, 16170)]