208808574

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 459841536

約数和(自身を除く): 251032962

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 107, 127, 197, 214, 254, 321, 381, 394, 591, 642, 762, 1182, 1391, 1651, 2561, 2782, 3302, 4173, 4953, 5122, 7683, 8346, 9906, 13589, 15366, 21079, 25019, 27178, 40767, 42158, 50038, 63237, 75057, 81534, 126474, 150114, 176657, 274027, 325247, 353314, 529971, 548054, 650494, 822081, 975741, 1059942, 1644162, 1951482, 2677033, 5354066, 8031099, 16062198, 34801429, 69602858, 104404287, 208808574]

約数ペア:

[(1, 208808574), (2, 104404287), (3, 69602858), (6, 34801429), (13, 16062198), (26, 8031099), (39, 5354066), (78, 2677033), (107, 1951482), (127, 1644162), (197, 1059942), (214, 975741), (254, 822081), (321, 650494), (381, 548054), (394, 529971), (591, 353314), (642, 325247), (762, 274027), (1182, 176657), (1391, 150114), (1651, 126474), (2561, 81534), (2782, 75057), (3302, 63237), (4173, 50038), (4953, 42158), (5122, 40767), (7683, 27178), (8346, 25019), (9906, 21079), (13589, 15366)]