28135940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{200971}}^1$

素因数の和:200987

約数の個数: 24

約数和(自身を含む): 67526592

約数和(自身を除く): 39390652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 200971, 401942, 803884, 1004855, 1406797, 2009710, 2813594, 4019420, 5627188, 7033985, 14067970, 28135940]

約数ペア:

[(1, 28135940), (2, 14067970), (4, 7033985), (5, 5627188), (7, 4019420), (10, 2813594), (14, 2009710), (20, 1406797), (28, 1004855), (35, 803884), (70, 401942), (140, 200971)]