257401764

素因数分解:

$2^2\times 3^2\times {\mathrm{223}}^1\times {\mathrm{32063}}^1$

素因数の和:32296

約数の個数: 36

約数和(自身を含む): 653592576

約数和(自身を除く): 396190812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 223, 446, 669, 892, 1338, 2007, 2676, 4014, 8028, 32063, 64126, 96189, 128252, 192378, 288567, 384756, 577134, 1154268, 7150049, 14300098, 21450147, 28600196, 42900294, 64350441, 85800588, 128700882, 257401764]

約数ペア:

[(1, 257401764), (2, 128700882), (3, 85800588), (4, 64350441), (6, 42900294), (9, 28600196), (12, 21450147), (18, 14300098), (36, 7150049), (223, 1154268), (446, 577134), (669, 384756), (892, 288567), (1338, 192378), (2007, 128252), (2676, 96189), (4014, 64126), (8028, 32063)]