201877720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:373

約数の個数: 128

約数和(自身を含む): 531178560

約数和(自身を除く): 329300840

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 137, 170, 187, 197, 220, 274, 340, 374, 394, 440, 548, 680, 685, 748, 788, 935, 985, 1096, 1370, 1496, 1507, 1576, 1870, 1970, 2167, 2329, 2740, 3014, 3349, 3740, 3940, 4334, 4658, 5480, 6028, 6698, 7480, 7535, 7880, 8668, 9316, 10835, 11645, 12056, 13396, 15070, 16745, 17336, 18632, 21670, 23290, 25619, 26792, 26989, 30140, 33490, 36839, 43340, 46580, 51238, 53978, 60280, 66980, 73678, 86680, 93160, 102476, 107956, 128095, 133960, 134945, 147356, 184195, 204952, 215912, 256190, 269890, 294712, 296879, 368390, 458813, 512380, 539780, 593758, 736780, 917626, 1024760, 1079560, 1187516, 1473560, 1484395, 1835252, 2294065, 2375032, 2968790, 3670504, 4588130, 5046943, 5937580, 9176260, 10093886, 11875160, 18352520, 20187772, 25234715, 40375544, 50469430, 100938860, 201877720]

約数ペア:

[(1, 201877720), (2, 100938860), (4, 50469430), (5, 40375544), (8, 25234715), (10, 20187772), (11, 18352520), (17, 11875160), (20, 10093886), (22, 9176260), (34, 5937580), (40, 5046943), (44, 4588130), (55, 3670504), (68, 2968790), (85, 2375032), (88, 2294065), (110, 1835252), (136, 1484395), (137, 1473560), (170, 1187516), (187, 1079560), (197, 1024760), (220, 917626), (274, 736780), (340, 593758), (374, 539780), (394, 512380), (440, 458813), (548, 368390), (680, 296879), (685, 294712), (748, 269890), (788, 256190), (935, 215912), (985, 204952), (1096, 184195), (1370, 147356), (1496, 134945), (1507, 133960), (1576, 128095), (1870, 107956), (1970, 102476), (2167, 93160), (2329, 86680), (2740, 73678), (3014, 66980), (3349, 60280), (3740, 53978), (3940, 51238), (4334, 46580), (4658, 43340), (5480, 36839), (6028, 33490), (6698, 30140), (7480, 26989), (7535, 26792), (7880, 25619), (8668, 23290), (9316, 21670), (10835, 18632), (11645, 17336), (12056, 16745), (13396, 15070)]