1300420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 3120768

約数和(自身を除く): 1820348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 257, 460, 506, 514, 1012, 1028, 1265, 1285, 2530, 2570, 2827, 5060, 5140, 5654, 5911, 11308, 11822, 14135, 23644, 28270, 29555, 56540, 59110, 65021, 118220, 130042, 260084, 325105, 650210, 1300420]

約数ペア:

[(1, 1300420), (2, 650210), (4, 325105), (5, 260084), (10, 130042), (11, 118220), (20, 65021), (22, 59110), (23, 56540), (44, 29555), (46, 28270), (55, 23644), (92, 14135), (110, 11822), (115, 11308), (220, 5911), (230, 5654), (253, 5140), (257, 5060), (460, 2827), (506, 2570), (514, 2530), (1012, 1285), (1028, 1265)]