138904688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 310042656

約数和(自身を除く): 171137968

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 163, 208, 221, 241, 272, 326, 442, 482, 652, 884, 964, 1304, 1768, 1928, 2119, 2608, 2771, 3133, 3536, 3856, 4097, 4238, 5542, 6266, 8194, 8476, 11084, 12532, 16388, 16952, 22168, 25064, 32776, 33904, 36023, 39283, 44336, 50128, 53261, 65552, 72046, 78566, 106522, 144092, 157132, 213044, 288184, 314264, 426088, 510679, 576368, 628528, 667811, 852176, 1021358, 1335622, 2042716, 2671244, 4085432, 5342488, 8170864, 8681543, 10684976, 17363086, 34726172, 69452344, 138904688]

約数ペア:

[(1, 138904688), (2, 69452344), (4, 34726172), (8, 17363086), (13, 10684976), (16, 8681543), (17, 8170864), (26, 5342488), (34, 4085432), (52, 2671244), (68, 2042716), (104, 1335622), (136, 1021358), (163, 852176), (208, 667811), (221, 628528), (241, 576368), (272, 510679), (326, 426088), (442, 314264), (482, 288184), (652, 213044), (884, 157132), (964, 144092), (1304, 106522), (1768, 78566), (1928, 72046), (2119, 65552), (2608, 53261), (2771, 50128), (3133, 44336), (3536, 39283), (3856, 36023), (4097, 33904), (4238, 32776), (5542, 25064), (6266, 22168), (8194, 16952), (8476, 16388), (11084, 12532)]