256705320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2139211}}^1$

素因数の和:2139225

約数の個数: 32

約数和(自身を含む): 770116320

約数和(自身を除く): 513411000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2139211, 4278422, 6417633, 8556844, 10696055, 12835266, 17113688, 21392110, 25670532, 32088165, 42784220, 51341064, 64176330, 85568440, 128352660, 256705320]

約数ペア:

[(1, 256705320), (2, 128352660), (3, 85568440), (4, 64176330), (5, 51341064), (6, 42784220), (8, 32088165), (10, 25670532), (12, 21392110), (15, 17113688), (20, 12835266), (24, 10696055), (30, 8556844), (40, 6417633), (60, 4278422), (120, 2139211)]