20408710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5501}}^1$

素因数の和:5568

約数の個数: 32

約数和(自身を含む): 42783552

約数和(自身を除く): 22374842

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5501, 11002, 27505, 38507, 55010, 77014, 192535, 291553, 385070, 583106, 1457765, 2040871, 2915530, 4081742, 10204355, 20408710]

約数ペア:

[(1, 20408710), (2, 10204355), (5, 4081742), (7, 2915530), (10, 2040871), (14, 1457765), (35, 583106), (53, 385070), (70, 291553), (106, 192535), (265, 77014), (371, 55010), (530, 38507), (742, 27505), (1855, 11002), (3710, 5501)]