20991656496

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{84247}}^1$

素因数の和:84466

約数の個数: 80

約数和(自身を含む): 56412460800

約数和(自身を除く): 35420804304

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 87, 116, 174, 179, 232, 348, 358, 464, 537, 696, 716, 1074, 1392, 1432, 2148, 2864, 4296, 5191, 8592, 10382, 15573, 20764, 31146, 41528, 62292, 83056, 84247, 124584, 168494, 249168, 252741, 336988, 505482, 673976, 1010964, 1347952, 2021928, 2443163, 4043856, 4886326, 7329489, 9772652, 14658978, 15080213, 19545304, 29317956, 30160426, 39090608, 45240639, 58635912, 60320852, 90481278, 117271824, 120641704, 180962556, 241283408, 361925112, 437326177, 723850224, 874652354, 1311978531, 1749304708, 2623957062, 3498609416, 5247914124, 6997218832, 10495828248, 20991656496]

約数ペア:

[(1, 20991656496), (2, 10495828248), (3, 6997218832), (4, 5247914124), (6, 3498609416), (8, 2623957062), (12, 1749304708), (16, 1311978531), (24, 874652354), (29, 723850224), (48, 437326177), (58, 361925112), (87, 241283408), (116, 180962556), (174, 120641704), (179, 117271824), (232, 90481278), (348, 60320852), (358, 58635912), (464, 45240639), (537, 39090608), (696, 30160426), (716, 29317956), (1074, 19545304), (1392, 15080213), (1432, 14658978), (2148, 9772652), (2864, 7329489), (4296, 4886326), (5191, 4043856), (8592, 2443163), (10382, 2021928), (15573, 1347952), (20764, 1010964), (31146, 673976), (41528, 505482), (62292, 336988), (83056, 252741), (84247, 249168), (124584, 168494)]