20995916045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{467}}^1$

素因数の和:615

約数の個数: 128

約数和(自身を含む): 31587978240

約数和(自身を除く): 10592062195

約数列:

[1, 5, 13, 17, 23, 29, 61, 65, 85, 115, 145, 221, 299, 305, 377, 391, 467, 493, 667, 793, 1037, 1105, 1403, 1495, 1769, 1885, 1955, 2335, 2465, 3335, 3965, 5083, 5185, 6071, 6409, 7015, 7939, 8671, 8845, 10741, 11339, 13481, 13543, 18239, 22997, 23851, 25415, 28487, 30073, 30355, 32045, 39695, 40687, 43355, 53705, 56695, 67405, 67715, 91195, 103207, 114985, 119255, 139633, 142435, 147407, 150365, 176059, 182597, 203435, 230231, 310063, 311489, 370331, 390949, 484279, 516035, 528931, 655201, 691679, 698165, 737035, 826123, 880295, 912985, 1151155, 1550315, 1557445, 1851655, 1954745, 2373761, 2421395, 2644655, 2993003, 3276005, 3458395, 4049357, 4130615, 5295313, 6295627, 8517613, 8991827, 10739599, 11138417, 11868805, 14044091, 14965015, 19000829, 20246785, 26476565, 31478135, 42588065, 44959135, 53697995, 55692085, 68839069, 70220455, 95004145, 144799421, 182573183, 247010777, 323014093, 344195345, 723997105, 912865915, 1235053885, 1615070465, 4199183209, 20995916045]

約数ペア:

[(1, 20995916045), (5, 4199183209), (13, 1615070465), (17, 1235053885), (23, 912865915), (29, 723997105), (61, 344195345), (65, 323014093), (85, 247010777), (115, 182573183), (145, 144799421), (221, 95004145), (299, 70220455), (305, 68839069), (377, 55692085), (391, 53697995), (467, 44959135), (493, 42588065), (667, 31478135), (793, 26476565), (1037, 20246785), (1105, 19000829), (1403, 14965015), (1495, 14044091), (1769, 11868805), (1885, 11138417), (1955, 10739599), (2335, 8991827), (2465, 8517613), (3335, 6295627), (3965, 5295313), (5083, 4130615), (5185, 4049357), (6071, 3458395), (6409, 3276005), (7015, 2993003), (7939, 2644655), (8671, 2421395), (8845, 2373761), (10741, 1954745), (11339, 1851655), (13481, 1557445), (13543, 1550315), (18239, 1151155), (22997, 912985), (23851, 880295), (25415, 826123), (28487, 737035), (30073, 698165), (30355, 691679), (32045, 655201), (39695, 528931), (40687, 516035), (43355, 484279), (53705, 390949), (56695, 370331), (67405, 311489), (67715, 310063), (91195, 230231), (103207, 203435), (114985, 182597), (119255, 176059), (139633, 150365), (142435, 147407)]