64815940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{1987}}^1$

素因数の和:2236

約数の個数: 48

約数和(自身を含む): 156304512

約数和(自身を除く): 91488572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 932, 1165, 1631, 1987, 2330, 3262, 3974, 4660, 6524, 7948, 8155, 9935, 13909, 16310, 19870, 27818, 32620, 39740, 55636, 69545, 139090, 278180, 462971, 925942, 1851884, 2314855, 3240797, 4629710, 6481594, 9259420, 12963188, 16203985, 32407970, 64815940]

約数ペア:

[(1, 64815940), (2, 32407970), (4, 16203985), (5, 12963188), (7, 9259420), (10, 6481594), (14, 4629710), (20, 3240797), (28, 2314855), (35, 1851884), (70, 925942), (140, 462971), (233, 278180), (466, 139090), (932, 69545), (1165, 55636), (1631, 39740), (1987, 32620), (2330, 27818), (3262, 19870), (3974, 16310), (4660, 13909), (6524, 9935), (7948, 8155)]