157720960

素因数分解:

$2^7\times 5^1\times {\mathrm{246439}}^1$

素因数の和:246458

約数の個数: 32

約数和(自身を含む): 377053200

約数和(自身を除く): 219332240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 246439, 492878, 985756, 1232195, 1971512, 2464390, 3943024, 4928780, 7886048, 9857560, 15772096, 19715120, 31544192, 39430240, 78860480, 157720960]

約数ペア:

[(1, 157720960), (2, 78860480), (4, 39430240), (5, 31544192), (8, 19715120), (10, 15772096), (16, 9857560), (20, 7886048), (32, 4928780), (40, 3943024), (64, 2464390), (80, 1971512), (128, 1232195), (160, 985756), (320, 492878), (640, 246439)]