38966120

素因数分解:

$2^3\times 5^1\times {\mathrm{983}}^1\times {\mathrm{991}}^1$

素因数の和:1985

約数の個数: 32

約数和(自身を含む): 87851520

約数和(自身を除く): 48885400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 983, 991, 1966, 1982, 3932, 3964, 4915, 4955, 7864, 7928, 9830, 9910, 19660, 19820, 39320, 39640, 974153, 1948306, 3896612, 4870765, 7793224, 9741530, 19483060, 38966120]

約数ペア:

[(1, 38966120), (2, 19483060), (4, 9741530), (5, 7793224), (8, 4870765), (10, 3896612), (20, 1948306), (40, 974153), (983, 39640), (991, 39320), (1966, 19820), (1982, 19660), (3932, 9910), (3964, 9830), (4915, 7928), (4955, 7864)]