25457920

素因数分解:

$2^8\times 5^1\times {\mathrm{19889}}^1$

素因数の和:19910

約数の個数: 36

約数和(自身を含む): 60982740

約数和(自身を除く): 35524820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19889, 39778, 79556, 99445, 159112, 198890, 318224, 397780, 636448, 795560, 1272896, 1591120, 2545792, 3182240, 5091584, 6364480, 12728960, 25457920]

約数ペア:

[(1, 25457920), (2, 12728960), (4, 6364480), (5, 5091584), (8, 3182240), (10, 2545792), (16, 1591120), (20, 1272896), (32, 795560), (40, 636448), (64, 397780), (80, 318224), (128, 198890), (160, 159112), (256, 99445), (320, 79556), (640, 39778), (1280, 19889)]