155864480

素因数分解:

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

素因数の和:1989

約数の個数: 48

約数和(自身を含む): 368976384

約数和(自身を除く): 213111904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 983, 991, 1966, 1982, 3932, 3964, 4915, 4955, 7864, 7928, 9830, 9910, 15728, 15856, 19660, 19820, 31456, 31712, 39320, 39640, 78640, 79280, 157280, 158560, 974153, 1948306, 3896612, 4870765, 7793224, 9741530, 15586448, 19483060, 31172896, 38966120, 77932240, 155864480]

約数ペア:

[(1, 155864480), (2, 77932240), (4, 38966120), (5, 31172896), (8, 19483060), (10, 15586448), (16, 9741530), (20, 7793224), (32, 4870765), (40, 3896612), (80, 1948306), (160, 974153), (983, 158560), (991, 157280), (1966, 79280), (1982, 78640), (3932, 39640), (3964, 39320), (4915, 31712), (4955, 31456), (7864, 19820), (7928, 19660), (9830, 15856), (9910, 15728)]