30511880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{108971}}^1$

素因数の和:108989

約数の個数: 32

約数和(自身を含む): 78459840

約数和(自身を除く): 47947960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 108971, 217942, 435884, 544855, 762797, 871768, 1089710, 1525594, 2179420, 3051188, 3813985, 4358840, 6102376, 7627970, 15255940, 30511880]

約数ペア:

[(1, 30511880), (2, 15255940), (4, 7627970), (5, 6102376), (7, 4358840), (8, 3813985), (10, 3051188), (14, 2179420), (20, 1525594), (28, 1089710), (35, 871768), (40, 762797), (56, 544855), (70, 435884), (140, 217942), (280, 108971)]