20726777775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{3083}}^1$

素因数の和:3417

約数の個数: 96

約数和(自身を含む): 38822872320

約数和(自身を除く): 18096094545

約数列:

[1, 3, 5, 11, 15, 25, 29, 33, 55, 75, 87, 145, 165, 275, 281, 319, 435, 725, 825, 843, 957, 1405, 1595, 2175, 3083, 3091, 4215, 4785, 7025, 7975, 8149, 9249, 9273, 15415, 15455, 21075, 23925, 24447, 33913, 40745, 46245, 46365, 77075, 77275, 89407, 89639, 101739, 122235, 169565, 203725, 231225, 231825, 268221, 268917, 447035, 448195, 508695, 611175, 847825, 866323, 983477, 1341105, 1344585, 2235175, 2240975, 2543475, 2598969, 2950431, 4331615, 4917385, 6705525, 6722925, 9529553, 12994845, 14752155, 21658075, 24586925, 25123367, 28588659, 47647765, 64974225, 73760775, 75370101, 125616835, 142943295, 238238825, 276357037, 376850505, 628084175, 714716475, 829071111, 1381785185, 1884252525, 4145355555, 6908925925, 20726777775]

約数ペア:

[(1, 20726777775), (3, 6908925925), (5, 4145355555), (11, 1884252525), (15, 1381785185), (25, 829071111), (29, 714716475), (33, 628084175), (55, 376850505), (75, 276357037), (87, 238238825), (145, 142943295), (165, 125616835), (275, 75370101), (281, 73760775), (319, 64974225), (435, 47647765), (725, 28588659), (825, 25123367), (843, 24586925), (957, 21658075), (1405, 14752155), (1595, 12994845), (2175, 9529553), (3083, 6722925), (3091, 6705525), (4215, 4917385), (4785, 4331615), (7025, 2950431), (7975, 2598969), (8149, 2543475), (9249, 2240975), (9273, 2235175), (15415, 1344585), (15455, 1341105), (21075, 983477), (23925, 866323), (24447, 847825), (33913, 611175), (40745, 508695), (46245, 448195), (46365, 447035), (77075, 268917), (77275, 268221), (89407, 231825), (89639, 231225), (101739, 203725), (122235, 169565)]