156659840

素因数分解:

$2^7\times 5^1\times {\mathrm{244781}}^1$

素因数の和:244800

約数の個数: 32

約数和(自身を含む): 374516460

約数和(自身を除く): 217856620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 244781, 489562, 979124, 1223905, 1958248, 2447810, 3916496, 4895620, 7832992, 9791240, 15665984, 19582480, 31331968, 39164960, 78329920, 156659840]

約数ペア:

[(1, 156659840), (2, 78329920), (4, 39164960), (5, 31331968), (8, 19582480), (10, 15665984), (16, 9791240), (20, 7832992), (32, 4895620), (40, 3916496), (64, 2447810), (80, 1958248), (128, 1223905), (160, 979124), (320, 489562), (640, 244781)]