268649680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{258317}}^1$

素因数の和:258343

約数の個数: 40

約数和(自身を含む): 672660072

約数和(自身を除く): 404010392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 258317, 516634, 1033268, 1291585, 2066536, 2583170, 3358121, 4133072, 5166340, 6716242, 10332680, 13432484, 16790605, 20665360, 26864968, 33581210, 53729936, 67162420, 134324840, 268649680]

約数ペア:

[(1, 268649680), (2, 134324840), (4, 67162420), (5, 53729936), (8, 33581210), (10, 26864968), (13, 20665360), (16, 16790605), (20, 13432484), (26, 10332680), (40, 6716242), (52, 5166340), (65, 4133072), (80, 3358121), (104, 2583170), (130, 2066536), (208, 1291585), (260, 1033268), (520, 516634), (1040, 258317)]