397966556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 763172256

約数和(自身を除く): 365205700

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 257, 307, 388, 514, 614, 1028, 1228, 1261, 2522, 3341, 3991, 5044, 6682, 7982, 13364, 15964, 24929, 29779, 49858, 59558, 78899, 99716, 119116, 157798, 315596, 324077, 387127, 648154, 774254, 1025687, 1296308, 1548508, 2051374, 4102748, 7653203, 15306406, 30612812, 99491639, 198983278, 397966556]

約数ペア:

[(1, 397966556), (2, 198983278), (4, 99491639), (13, 30612812), (26, 15306406), (52, 7653203), (97, 4102748), (194, 2051374), (257, 1548508), (307, 1296308), (388, 1025687), (514, 774254), (614, 648154), (1028, 387127), (1228, 324077), (1261, 315596), (2522, 157798), (3341, 119116), (3991, 99716), (5044, 78899), (6682, 59558), (7982, 49858), (13364, 29779), (15964, 24929)]