20168998425

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{389}}^1$

素因数の和:704

約数の個数: 144

約数和(自身を含む): 38837335680

約数和(自身を除く): 18668337255

約数列:

[1, 3, 5, 9, 15, 23, 25, 43, 45, 69, 75, 115, 129, 207, 215, 225, 233, 345, 387, 389, 575, 645, 699, 989, 1035, 1075, 1165, 1167, 1725, 1935, 1945, 2097, 2967, 3225, 3495, 3501, 4945, 5175, 5359, 5825, 5835, 8901, 8947, 9675, 9725, 10019, 10485, 14835, 16077, 16727, 17475, 17505, 24725, 26795, 26841, 29175, 30057, 44505, 44735, 48231, 50095, 50181, 52425, 74175, 80385, 80523, 83635, 87525, 90171, 90637, 133975, 134205, 150285, 150543, 222525, 223675, 230437, 241155, 250475, 250905, 271911, 384721, 401925, 402615, 418175, 450855, 453185, 671025, 691311, 751425, 752715, 815733, 1152185, 1154163, 1205775, 1254525, 1359555, 1923605, 2013075, 2073933, 2084651, 2254275, 2265925, 3456555, 3462489, 3763575, 3897391, 4078665, 5760925, 5770815, 6253953, 6797775, 9618025, 10369665, 10423255, 11692173, 17282775, 17312445, 18761859, 19486955, 20393325, 28854075, 31269765, 35076519, 51848325, 52116275, 58460865, 86562225, 89639993, 93809295, 97434775, 156348825, 175382595, 268919979, 292304325, 448199965, 469046475, 806759937, 876912975, 1344599895, 2240999825, 4033799685, 6722999475, 20168998425]

約数ペア:

[(1, 20168998425), (3, 6722999475), (5, 4033799685), (9, 2240999825), (15, 1344599895), (23, 876912975), (25, 806759937), (43, 469046475), (45, 448199965), (69, 292304325), (75, 268919979), (115, 175382595), (129, 156348825), (207, 97434775), (215, 93809295), (225, 89639993), (233, 86562225), (345, 58460865), (387, 52116275), (389, 51848325), (575, 35076519), (645, 31269765), (699, 28854075), (989, 20393325), (1035, 19486955), (1075, 18761859), (1165, 17312445), (1167, 17282775), (1725, 11692173), (1935, 10423255), (1945, 10369665), (2097, 9618025), (2967, 6797775), (3225, 6253953), (3495, 5770815), (3501, 5760925), (4945, 4078665), (5175, 3897391), (5359, 3763575), (5825, 3462489), (5835, 3456555), (8901, 2265925), (8947, 2254275), (9675, 2084651), (9725, 2073933), (10019, 2013075), (10485, 1923605), (14835, 1359555), (16077, 1254525), (16727, 1205775), (17475, 1154163), (17505, 1152185), (24725, 815733), (26795, 752715), (26841, 751425), (29175, 691311), (30057, 671025), (44505, 453185), (44735, 450855), (48231, 418175), (50095, 402615), (50181, 401925), (52425, 384721), (74175, 271911), (80385, 250905), (80523, 250475), (83635, 241155), (87525, 230437), (90171, 223675), (90637, 222525), (133975, 150543), (134205, 150285)]