15201920

素因数分解:

$2^7\times 5^1\times {\mathrm{23753}}^1$

素因数の和:23772

約数の個数: 32

約数和(自身を含む): 36343620

約数和(自身を除く): 21141700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 23753, 47506, 95012, 118765, 190024, 237530, 380048, 475060, 760096, 950120, 1520192, 1900240, 3040384, 3800480, 7600960, 15201920]

約数ペア:

[(1, 15201920), (2, 7600960), (4, 3800480), (5, 3040384), (8, 1900240), (10, 1520192), (16, 950120), (20, 760096), (32, 475060), (40, 380048), (64, 237530), (80, 190024), (128, 118765), (160, 95012), (320, 47506), (640, 23753)]