644959161

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 1269224320

約数和(自身を除く): 624265159

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 61, 63, 73, 77, 99, 121, 133, 171, 183, 209, 219, 231, 363, 399, 427, 511, 549, 627, 657, 671, 693, 803, 847, 1089, 1159, 1197, 1281, 1387, 1463, 1533, 1881, 2013, 2299, 2409, 2541, 3477, 3843, 4161, 4389, 4453, 4599, 4697, 5621, 6039, 6897, 7227, 7381, 7623, 8113, 8833, 9709, 10431, 12483, 12749, 13167, 13359, 14091, 15257, 16093, 16863, 20691, 22143, 24339, 26499, 29127, 31171, 38247, 40077, 42273, 45771, 48279, 48983, 50589, 51667, 61831, 66429, 73017, 79497, 84607, 87381, 89243, 93513, 106799, 114741, 137313, 140239, 144837, 146949, 155001, 167827, 185493, 253821, 267729, 280539, 320397, 342881, 420717, 440847, 465003, 503481, 538813, 556479, 592249, 761463, 803187, 930677, 961191, 981673, 1028643, 1174789, 1262151, 1510443, 1616439, 1776747, 2792031, 2945019, 3085929, 3524367, 3771691, 4849317, 5330241, 6514739, 8376093, 8835057, 10237447, 10573101, 11315073, 19544217, 30712341, 33945219, 58632651, 71662129, 92137023, 214986387, 644959161]

約数ペア:

[(1, 644959161), (3, 214986387), (7, 92137023), (9, 71662129), (11, 58632651), (19, 33945219), (21, 30712341), (33, 19544217), (57, 11315073), (61, 10573101), (63, 10237447), (73, 8835057), (77, 8376093), (99, 6514739), (121, 5330241), (133, 4849317), (171, 3771691), (183, 3524367), (209, 3085929), (219, 2945019), (231, 2792031), (363, 1776747), (399, 1616439), (427, 1510443), (511, 1262151), (549, 1174789), (627, 1028643), (657, 981673), (671, 961191), (693, 930677), (803, 803187), (847, 761463), (1089, 592249), (1159, 556479), (1197, 538813), (1281, 503481), (1387, 465003), (1463, 440847), (1533, 420717), (1881, 342881), (2013, 320397), (2299, 280539), (2409, 267729), (2541, 253821), (3477, 185493), (3843, 167827), (4161, 155001), (4389, 146949), (4453, 144837), (4599, 140239), (4697, 137313), (5621, 114741), (6039, 106799), (6897, 93513), (7227, 89243), (7381, 87381), (7623, 84607), (8113, 79497), (8833, 73017), (9709, 66429), (10431, 61831), (12483, 51667), (12749, 50589), (13167, 48983), (13359, 48279), (14091, 45771), (15257, 42273), (16093, 40077), (16863, 38247), (20691, 31171), (22143, 29127), (24339, 26499)]