645118460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{33151}}^1$

素因数の和:33306

約数の個数: 48

約数和(自身を含む): 1559470080

約数和(自身を除く): 914351620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 19460, 33151, 66302, 132604, 165755, 232057, 331510, 464114, 663020, 928228, 1160285, 2320570, 4607989, 4641140, 9215978, 18431956, 23039945, 32255923, 46079890, 64511846, 92159780, 129023692, 161279615, 322559230, 645118460]

約数ペア:

[(1, 645118460), (2, 322559230), (4, 161279615), (5, 129023692), (7, 92159780), (10, 64511846), (14, 46079890), (20, 32255923), (28, 23039945), (35, 18431956), (70, 9215978), (139, 4641140), (140, 4607989), (278, 2320570), (556, 1160285), (695, 928228), (973, 663020), (1390, 464114), (1946, 331510), (2780, 232057), (3892, 165755), (4865, 132604), (9730, 66302), (19460, 33151)]