681982144

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{1307}}^1$

素因数の和:1613

約数の個数: 56

約数和(自身を含む): 1403347968

約数和(自身を除く): 721365824

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 263, 496, 526, 992, 1052, 1307, 1984, 2104, 2614, 4208, 5228, 8153, 8416, 10456, 16306, 16832, 20912, 32612, 40517, 41824, 65224, 81034, 83648, 130448, 162068, 260896, 324136, 343741, 521792, 648272, 687482, 1296544, 1374964, 2593088, 2749928, 5499856, 10655971, 10999712, 21311942, 21999424, 42623884, 85247768, 170495536, 340991072, 681982144]

約数ペア:

[(1, 681982144), (2, 340991072), (4, 170495536), (8, 85247768), (16, 42623884), (31, 21999424), (32, 21311942), (62, 10999712), (64, 10655971), (124, 5499856), (248, 2749928), (263, 2593088), (496, 1374964), (526, 1296544), (992, 687482), (1052, 648272), (1307, 521792), (1984, 343741), (2104, 324136), (2614, 260896), (4208, 162068), (5228, 130448), (8153, 83648), (8416, 81034), (10456, 65224), (16306, 41824), (16832, 40517), (20912, 32612)]