20396320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18211}}^1$

素因数の和:18233

約数の個数: 48

約数和(自身を含む): 55073088

約数和(自身を除く): 34676768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18211, 36422, 72844, 91055, 127477, 145688, 182110, 254954, 291376, 364220, 509908, 582752, 637385, 728440, 1019816, 1274770, 1456880, 2039632, 2549540, 2913760, 4079264, 5099080, 10198160, 20396320]

約数ペア:

[(1, 20396320), (2, 10198160), (4, 5099080), (5, 4079264), (7, 2913760), (8, 2549540), (10, 2039632), (14, 1456880), (16, 1274770), (20, 1019816), (28, 728440), (32, 637385), (35, 582752), (40, 509908), (56, 364220), (70, 291376), (80, 254954), (112, 182110), (140, 145688), (160, 127477), (224, 91055), (280, 72844), (560, 36422), (1120, 18211)]