256516816

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{463}}^1\times {\mathrm{1117}}^1$

素因数の和:1619

約数の個数: 40

約数和(自身を含む): 514601984

約数和(自身を除く): 258085168

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 463, 496, 926, 1117, 1852, 2234, 3704, 4468, 7408, 8936, 14353, 17872, 28706, 34627, 57412, 69254, 114824, 138508, 229648, 277016, 517171, 554032, 1034342, 2068684, 4137368, 8274736, 16032301, 32064602, 64129204, 128258408, 256516816]

約数ペア:

[(1, 256516816), (2, 128258408), (4, 64129204), (8, 32064602), (16, 16032301), (31, 8274736), (62, 4137368), (124, 2068684), (248, 1034342), (463, 554032), (496, 517171), (926, 277016), (1117, 229648), (1852, 138508), (2234, 114824), (3704, 69254), (4468, 57412), (7408, 34627), (8936, 28706), (14353, 17872)]