71841920

素因数分解:

$2^7\times 5^1\times {\mathrm{112253}}^1$

素因数の和:112272

約数の個数: 32

約数和(自身を含む): 171748620

約数和(自身を除く): 99906700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 112253, 224506, 449012, 561265, 898024, 1122530, 1796048, 2245060, 3592096, 4490120, 7184192, 8980240, 14368384, 17960480, 35920960, 71841920]

約数ペア:

[(1, 71841920), (2, 35920960), (4, 17960480), (5, 14368384), (8, 8980240), (10, 7184192), (16, 4490120), (20, 3592096), (32, 2245060), (40, 1796048), (64, 1122530), (80, 898024), (128, 561265), (160, 449012), (320, 224506), (640, 112253)]