279989024

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:770

約数の個数: 96

約数和(自身を含む): 661957632

約数和(自身を除く): 381968608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 61, 62, 112, 122, 124, 217, 224, 244, 248, 427, 434, 488, 496, 661, 854, 868, 976, 992, 1322, 1708, 1736, 1891, 1952, 2644, 3416, 3472, 3782, 4627, 5288, 6832, 6944, 7564, 9254, 10576, 13237, 13664, 15128, 18508, 20491, 21152, 26474, 30256, 37016, 40321, 40982, 52948, 60512, 74032, 80642, 81964, 105896, 143437, 148064, 161284, 163928, 211792, 282247, 286874, 322568, 327856, 423584, 564494, 573748, 645136, 655712, 1128988, 1147496, 1249951, 1290272, 2257976, 2294992, 2499902, 4515952, 4589984, 4999804, 8749657, 9031904, 9999608, 17499314, 19999216, 34998628, 39998432, 69997256, 139994512, 279989024]

約数ペア:

[(1, 279989024), (2, 139994512), (4, 69997256), (7, 39998432), (8, 34998628), (14, 19999216), (16, 17499314), (28, 9999608), (31, 9031904), (32, 8749657), (56, 4999804), (61, 4589984), (62, 4515952), (112, 2499902), (122, 2294992), (124, 2257976), (217, 1290272), (224, 1249951), (244, 1147496), (248, 1128988), (427, 655712), (434, 645136), (488, 573748), (496, 564494), (661, 423584), (854, 327856), (868, 322568), (976, 286874), (992, 282247), (1322, 211792), (1708, 163928), (1736, 161284), (1891, 148064), (1952, 143437), (2644, 105896), (3416, 81964), (3472, 80642), (3782, 74032), (4627, 60512), (5288, 52948), (6832, 40982), (6944, 40321), (7564, 37016), (9254, 30256), (10576, 26474), (13237, 21152), (13664, 20491), (15128, 18508)]