219323780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{843553}}^1$

素因数の和:843575

約数の個数: 24

約数和(自身を含む): 496009752

約数和(自身を除く): 276685972

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 843553, 1687106, 3374212, 4217765, 8435530, 10966189, 16871060, 21932378, 43864756, 54830945, 109661890, 219323780]

約数ペア:

[(1, 219323780), (2, 109661890), (4, 54830945), (5, 43864756), (10, 21932378), (13, 16871060), (20, 10966189), (26, 8435530), (52, 4217765), (65, 3374212), (130, 1687106), (260, 843553)]