19217920

素因数分解:

$2^9\times 5^1\times {\mathrm{7507}}^1$

素因数の和:7530

約数の個数: 40

約数和(自身を含む): 46084104

約数和(自身を除く): 26866184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7507, 15014, 30028, 37535, 60056, 75070, 120112, 150140, 240224, 300280, 480448, 600560, 960896, 1201120, 1921792, 2402240, 3843584, 4804480, 9608960, 19217920]

約数ペア:

[(1, 19217920), (2, 9608960), (4, 4804480), (5, 3843584), (8, 2402240), (10, 1921792), (16, 1201120), (20, 960896), (32, 600560), (40, 480448), (64, 300280), (80, 240224), (128, 150140), (160, 120112), (256, 75070), (320, 60056), (512, 37535), (640, 30028), (1280, 15014), (2560, 7507)]