208697775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 429451680

約数和(自身を除く): 220753905

約数列:

[1, 3, 5, 11, 13, 15, 25, 29, 33, 39, 55, 61, 65, 75, 87, 121, 143, 145, 165, 183, 195, 275, 305, 319, 325, 363, 377, 429, 435, 605, 671, 715, 725, 793, 825, 915, 957, 975, 1131, 1525, 1573, 1595, 1769, 1815, 1885, 2013, 2145, 2175, 2379, 3025, 3355, 3509, 3575, 3965, 4147, 4575, 4719, 4785, 5307, 5655, 7381, 7865, 7975, 8723, 8845, 9075, 9425, 10065, 10527, 10725, 11895, 12441, 16775, 17545, 19459, 19825, 20735, 22143, 22997, 23595, 23925, 26169, 26535, 28275, 36905, 39325, 43615, 44225, 45617, 50325, 52635, 58377, 59475, 62205, 68991, 87725, 95953, 97295, 103675, 110715, 114985, 117975, 130845, 132675, 136851, 184525, 214049, 218075, 228085, 252967, 263175, 287859, 291885, 311025, 344955, 479765, 486475, 553575, 574925, 642147, 654225, 684255, 758901, 1070245, 1140425, 1264835, 1439295, 1459425, 1724775, 2398825, 2782637, 3210735, 3421275, 3794505, 5351225, 6324175, 7196475, 8347911, 13913185, 16053675, 18972525, 41739555, 69565925, 208697775]

約数ペア:

[(1, 208697775), (3, 69565925), (5, 41739555), (11, 18972525), (13, 16053675), (15, 13913185), (25, 8347911), (29, 7196475), (33, 6324175), (39, 5351225), (55, 3794505), (61, 3421275), (65, 3210735), (75, 2782637), (87, 2398825), (121, 1724775), (143, 1459425), (145, 1439295), (165, 1264835), (183, 1140425), (195, 1070245), (275, 758901), (305, 684255), (319, 654225), (325, 642147), (363, 574925), (377, 553575), (429, 486475), (435, 479765), (605, 344955), (671, 311025), (715, 291885), (725, 287859), (793, 263175), (825, 252967), (915, 228085), (957, 218075), (975, 214049), (1131, 184525), (1525, 136851), (1573, 132675), (1595, 130845), (1769, 117975), (1815, 114985), (1885, 110715), (2013, 103675), (2145, 97295), (2175, 95953), (2379, 87725), (3025, 68991), (3355, 62205), (3509, 59475), (3575, 58377), (3965, 52635), (4147, 50325), (4575, 45617), (4719, 44225), (4785, 43615), (5307, 39325), (5655, 36905), (7381, 28275), (7865, 26535), (7975, 26169), (8723, 23925), (8845, 23595), (9075, 22997), (9425, 22143), (10065, 20735), (10527, 19825), (10725, 19459), (11895, 17545), (12441, 16775)]