278411432

素因数分解:

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

素因数の和:450

約数の個数: 64

約数和(自身を含む): 574801920

約数和(自身を除く): 296390488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 127, 197, 214, 254, 394, 428, 508, 788, 856, 1016, 1391, 1576, 1651, 2561, 2782, 3302, 5122, 5564, 6604, 10244, 11128, 13208, 13589, 20488, 21079, 25019, 27178, 42158, 50038, 54356, 84316, 100076, 108712, 168632, 176657, 200152, 274027, 325247, 353314, 548054, 650494, 706628, 1096108, 1300988, 1413256, 2192216, 2601976, 2677033, 5354066, 10708132, 21416264, 34801429, 69602858, 139205716, 278411432]

約数ペア:

[(1, 278411432), (2, 139205716), (4, 69602858), (8, 34801429), (13, 21416264), (26, 10708132), (52, 5354066), (104, 2677033), (107, 2601976), (127, 2192216), (197, 1413256), (214, 1300988), (254, 1096108), (394, 706628), (428, 650494), (508, 548054), (788, 353314), (856, 325247), (1016, 274027), (1391, 200152), (1576, 176657), (1651, 168632), (2561, 108712), (2782, 100076), (3302, 84316), (5122, 54356), (5564, 50038), (6604, 42158), (10244, 27178), (11128, 25019), (13208, 21079), (13589, 20488)]