20172858728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:579

約数の個数: 128

約数和(自身を含む): 42848403840

約数和(自身を除く): 22675545112

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 131, 137, 212, 241, 262, 274, 424, 482, 524, 548, 583, 964, 1048, 1096, 1166, 1441, 1507, 1928, 2332, 2651, 2882, 3014, 4664, 5302, 5764, 6028, 6943, 7261, 10604, 11528, 12056, 12773, 13886, 14522, 17947, 21208, 25546, 27772, 29044, 31571, 33017, 35894, 51092, 55544, 58088, 63142, 66034, 71788, 76373, 79871, 102184, 126284, 132068, 140503, 143576, 152746, 159742, 197417, 252568, 264136, 281006, 305492, 319484, 347281, 363187, 394834, 562012, 610984, 638968, 694562, 726374, 789668, 951191, 1124024, 1389124, 1452748, 1579336, 1673263, 1749901, 1902382, 2778248, 2905496, 3346526, 3499802, 3804764, 4325227, 6693052, 6999604, 7609528, 8650454, 10463101, 13386104, 13999208, 17300908, 18405893, 19248911, 20926202, 34601816, 36811786, 38497822, 41852404, 47577497, 73623572, 76995644, 83704808, 95154994, 147247144, 153991288, 190309988, 229237031, 380619976, 458474062, 916948124, 1833896248, 2521607341, 5043214682, 10086429364, 20172858728]

約数ペア:

[(1, 20172858728), (2, 10086429364), (4, 5043214682), (8, 2521607341), (11, 1833896248), (22, 916948124), (44, 458474062), (53, 380619976), (88, 229237031), (106, 190309988), (131, 153991288), (137, 147247144), (212, 95154994), (241, 83704808), (262, 76995644), (274, 73623572), (424, 47577497), (482, 41852404), (524, 38497822), (548, 36811786), (583, 34601816), (964, 20926202), (1048, 19248911), (1096, 18405893), (1166, 17300908), (1441, 13999208), (1507, 13386104), (1928, 10463101), (2332, 8650454), (2651, 7609528), (2882, 6999604), (3014, 6693052), (4664, 4325227), (5302, 3804764), (5764, 3499802), (6028, 3346526), (6943, 2905496), (7261, 2778248), (10604, 1902382), (11528, 1749901), (12056, 1673263), (12773, 1579336), (13886, 1452748), (14522, 1389124), (17947, 1124024), (21208, 951191), (25546, 789668), (27772, 726374), (29044, 694562), (31571, 638968), (33017, 610984), (35894, 562012), (51092, 394834), (55544, 363187), (58088, 347281), (63142, 319484), (66034, 305492), (71788, 281006), (76373, 264136), (79871, 252568), (102184, 197417), (126284, 159742), (132068, 152746), (140503, 143576)]