255906456

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{820213}}^1$

素因数の和:820235

約数の個数: 32

約数和(自身を含む): 688979760

約数和(自身を除く): 433073304

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 820213, 1640426, 2460639, 3280852, 4921278, 6561704, 9842556, 10662769, 19685112, 21325538, 31988307, 42651076, 63976614, 85302152, 127953228, 255906456]

約数ペア:

[(1, 255906456), (2, 127953228), (3, 85302152), (4, 63976614), (6, 42651076), (8, 31988307), (12, 21325538), (13, 19685112), (24, 10662769), (26, 9842556), (39, 6561704), (52, 4921278), (78, 3280852), (104, 2460639), (156, 1640426), (312, 820213)]