126318520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{271}}^2$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 291903480

約数和(自身を除く): 165584960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 271, 344, 430, 542, 860, 1084, 1355, 1720, 2168, 2710, 5420, 10840, 11653, 23306, 46612, 58265, 73441, 93224, 116530, 146882, 233060, 293764, 367205, 466120, 587528, 734410, 1468820, 2937640, 3157963, 6315926, 12631852, 15789815, 25263704, 31579630, 63159260, 126318520]

約数ペア:

[(1, 126318520), (2, 63159260), (4, 31579630), (5, 25263704), (8, 15789815), (10, 12631852), (20, 6315926), (40, 3157963), (43, 2937640), (86, 1468820), (172, 734410), (215, 587528), (271, 466120), (344, 367205), (430, 293764), (542, 233060), (860, 146882), (1084, 116530), (1355, 93224), (1720, 73441), (2168, 58265), (2710, 46612), (5420, 23306), (10840, 11653)]