20165593665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{1063}}^1$

素因数の和:1391

約数の個数: 128

約数和(自身を含む): 40056791040

約数和(自身を除く): 19891197375

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 37, 57, 95, 105, 111, 133, 185, 257, 259, 285, 399, 555, 665, 703, 771, 777, 1063, 1285, 1295, 1799, 1995, 2109, 3189, 3515, 3855, 3885, 4883, 4921, 5315, 5397, 7441, 8995, 9509, 10545, 14649, 14763, 15945, 20197, 22323, 24415, 24605, 26985, 28527, 34181, 37205, 39331, 47545, 60591, 66563, 73245, 73815, 100985, 102543, 111615, 117993, 141379, 142635, 170905, 180671, 196655, 199689, 273191, 275317, 302955, 332815, 424137, 512715, 542013, 589965, 706895, 747289, 819573, 825951, 903355, 998445, 1264697, 1365955, 1376585, 1912337, 2120685, 2241867, 2710065, 3736445, 3794091, 4097865, 4129755, 5190629, 5231023, 5737011, 6323485, 9561685, 10108067, 11209335, 15571887, 15693069, 18970455, 25953145, 26155115, 28685055, 30324201, 36334403, 50540335, 70756469, 77859435, 78465345, 109003209, 151621005, 181672015, 192053273, 212269407, 353782345, 545016045, 576159819, 960266365, 1061347035, 1344372911, 2880799095, 4033118733, 6721864555, 20165593665]

約数ペア:

[(1, 20165593665), (3, 6721864555), (5, 4033118733), (7, 2880799095), (15, 1344372911), (19, 1061347035), (21, 960266365), (35, 576159819), (37, 545016045), (57, 353782345), (95, 212269407), (105, 192053273), (111, 181672015), (133, 151621005), (185, 109003209), (257, 78465345), (259, 77859435), (285, 70756469), (399, 50540335), (555, 36334403), (665, 30324201), (703, 28685055), (771, 26155115), (777, 25953145), (1063, 18970455), (1285, 15693069), (1295, 15571887), (1799, 11209335), (1995, 10108067), (2109, 9561685), (3189, 6323485), (3515, 5737011), (3855, 5231023), (3885, 5190629), (4883, 4129755), (4921, 4097865), (5315, 3794091), (5397, 3736445), (7441, 2710065), (8995, 2241867), (9509, 2120685), (10545, 1912337), (14649, 1376585), (14763, 1365955), (15945, 1264697), (20197, 998445), (22323, 903355), (24415, 825951), (24605, 819573), (26985, 747289), (28527, 706895), (34181, 589965), (37205, 542013), (39331, 512715), (47545, 424137), (60591, 332815), (66563, 302955), (73245, 275317), (73815, 273191), (100985, 199689), (102543, 196655), (111615, 180671), (117993, 170905), (141379, 142635)]