20784830992

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1\times {\mathrm{1789}}^1$

素因数の和:2192

約数の個数: 80

約数和(自身を含む): 42541741440

約数和(自身を除く): 21756910448

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 131, 184, 241, 262, 368, 482, 524, 964, 1048, 1789, 1928, 2096, 3013, 3578, 3856, 5543, 6026, 7156, 11086, 12052, 14312, 22172, 24104, 28624, 31571, 41147, 44344, 48208, 63142, 82294, 88688, 126284, 164588, 234359, 252568, 329176, 431149, 468718, 505136, 658352, 726133, 862298, 937436, 1452266, 1724596, 1874872, 2904532, 3449192, 3749744, 5390257, 5809064, 6898384, 9916427, 10780514, 11618128, 19832854, 21561028, 39665708, 43122056, 56480519, 79331416, 86244112, 112961038, 158662832, 225922076, 451844152, 903688304, 1299051937, 2598103874, 5196207748, 10392415496, 20784830992]

約数ペア:

[(1, 20784830992), (2, 10392415496), (4, 5196207748), (8, 2598103874), (16, 1299051937), (23, 903688304), (46, 451844152), (92, 225922076), (131, 158662832), (184, 112961038), (241, 86244112), (262, 79331416), (368, 56480519), (482, 43122056), (524, 39665708), (964, 21561028), (1048, 19832854), (1789, 11618128), (1928, 10780514), (2096, 9916427), (3013, 6898384), (3578, 5809064), (3856, 5390257), (5543, 3749744), (6026, 3449192), (7156, 2904532), (11086, 1874872), (12052, 1724596), (14312, 1452266), (22172, 937436), (24104, 862298), (28624, 726133), (31571, 658352), (41147, 505136), (44344, 468718), (48208, 431149), (63142, 329176), (82294, 252568), (88688, 234359), (126284, 164588)]