20365240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72733}}^1$

素因数の和:72751

約数の個数: 32

約数和(自身を含む): 52368480

約数和(自身を除く): 32003240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72733, 145466, 290932, 363665, 509131, 581864, 727330, 1018262, 1454660, 2036524, 2545655, 2909320, 4073048, 5091310, 10182620, 20365240]

約数ペア:

[(1, 20365240), (2, 10182620), (4, 5091310), (5, 4073048), (7, 2909320), (8, 2545655), (10, 2036524), (14, 1454660), (20, 1018262), (28, 727330), (35, 581864), (40, 509131), (56, 363665), (70, 290932), (140, 145466), (280, 72733)]