31879328

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:609

約数の個数: 48

約数和(自身を含む): 68108040

約数和(自身を除く): 36228712

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 197, 208, 389, 394, 416, 778, 788, 1556, 1576, 2561, 3112, 3152, 5057, 5122, 6224, 6304, 10114, 10244, 12448, 20228, 20488, 40456, 40976, 76633, 80912, 81952, 153266, 161824, 306532, 613064, 996229, 1226128, 1992458, 2452256, 3984916, 7969832, 15939664, 31879328]

約数ペア:

[(1, 31879328), (2, 15939664), (4, 7969832), (8, 3984916), (13, 2452256), (16, 1992458), (26, 1226128), (32, 996229), (52, 613064), (104, 306532), (197, 161824), (208, 153266), (389, 81952), (394, 80912), (416, 76633), (778, 40976), (788, 40456), (1556, 20488), (1576, 20228), (2561, 12448), (3112, 10244), (3152, 10114), (5057, 6304), (5122, 6224)]