20530240

素因数分解:

$2^6\times 5^1\times {\mathrm{64157}}^1$

素因数の和:64174

約数の個数: 28

約数和(自身を含む): 48888396

約数和(自身を除く): 28358156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64157, 128314, 256628, 320785, 513256, 641570, 1026512, 1283140, 2053024, 2566280, 4106048, 5132560, 10265120, 20530240]

約数ペア:

[(1, 20530240), (2, 10265120), (4, 5132560), (5, 4106048), (8, 2566280), (10, 2053024), (16, 1283140), (20, 1026512), (32, 641570), (40, 513256), (64, 320785), (80, 256628), (160, 128314), (320, 64157)]