76979980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 211782816

約数和(自身を除く): 134802836

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 49, 55, 70, 74, 77, 98, 110, 140, 148, 154, 185, 193, 196, 220, 245, 259, 308, 370, 385, 386, 407, 490, 518, 539, 740, 770, 772, 814, 965, 980, 1036, 1078, 1295, 1351, 1540, 1628, 1813, 1930, 2035, 2123, 2156, 2590, 2695, 2702, 2849, 3626, 3860, 4070, 4246, 5180, 5390, 5404, 5698, 6755, 7141, 7252, 8140, 8492, 9065, 9457, 10615, 10780, 11396, 13510, 14245, 14282, 14861, 18130, 18914, 19943, 21230, 27020, 28490, 28564, 29722, 35705, 36260, 37828, 39886, 42460, 47285, 49987, 56980, 59444, 71410, 74305, 78551, 79772, 94570, 99715, 99974, 104027, 142820, 148610, 157102, 189140, 199430, 199948, 208054, 249935, 297220, 314204, 349909, 392755, 398860, 416108, 499870, 520135, 549857, 699818, 785510, 999740, 1040270, 1099714, 1399636, 1571020, 1749545, 2080540, 2199428, 2749285, 3499090, 3848999, 5498570, 6998180, 7697998, 10997140, 15395996, 19244995, 38489990, 76979980]

約数ペア:

[(1, 76979980), (2, 38489990), (4, 19244995), (5, 15395996), (7, 10997140), (10, 7697998), (11, 6998180), (14, 5498570), (20, 3848999), (22, 3499090), (28, 2749285), (35, 2199428), (37, 2080540), (44, 1749545), (49, 1571020), (55, 1399636), (70, 1099714), (74, 1040270), (77, 999740), (98, 785510), (110, 699818), (140, 549857), (148, 520135), (154, 499870), (185, 416108), (193, 398860), (196, 392755), (220, 349909), (245, 314204), (259, 297220), (308, 249935), (370, 208054), (385, 199948), (386, 199430), (407, 189140), (490, 157102), (518, 148610), (539, 142820), (740, 104027), (770, 99974), (772, 99715), (814, 94570), (965, 79772), (980, 78551), (1036, 74305), (1078, 71410), (1295, 59444), (1351, 56980), (1540, 49987), (1628, 47285), (1813, 42460), (1930, 39886), (2035, 37828), (2123, 36260), (2156, 35705), (2590, 29722), (2695, 28564), (2702, 28490), (2849, 27020), (3626, 21230), (3860, 19943), (4070, 18914), (4246, 18130), (5180, 14861), (5390, 14282), (5404, 14245), (5698, 13510), (6755, 11396), (7141, 10780), (7252, 10615), (8140, 9457), (8492, 9065)]