220633840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{393989}}^1$

素因数の和:394009

約数の個数: 40

約数和(自身を含む): 586257120

約数和(自身を除く): 365623280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 393989, 787978, 1575956, 1969945, 2757923, 3151912, 3939890, 5515846, 6303824, 7879780, 11031692, 13789615, 15759560, 22063384, 27579230, 31519120, 44126768, 55158460, 110316920, 220633840]

約数ペア:

[(1, 220633840), (2, 110316920), (4, 55158460), (5, 44126768), (7, 31519120), (8, 27579230), (10, 22063384), (14, 15759560), (16, 13789615), (20, 11031692), (28, 7879780), (35, 6303824), (40, 5515846), (56, 3939890), (70, 3151912), (80, 2757923), (112, 1969945), (140, 1575956), (280, 787978), (560, 393989)]