31889920

素因数分解:

$2^9\times 5^1\times {\mathrm{12457}}^1$

素因数の和:12480

約数の個数: 40

約数和(自身を含む): 76467204

約数和(自身を除く): 44577284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 12457, 24914, 49828, 62285, 99656, 124570, 199312, 249140, 398624, 498280, 797248, 996560, 1594496, 1993120, 3188992, 3986240, 6377984, 7972480, 15944960, 31889920]

約数ペア:

[(1, 31889920), (2, 15944960), (4, 7972480), (5, 6377984), (8, 3986240), (10, 3188992), (16, 1993120), (20, 1594496), (32, 996560), (40, 797248), (64, 498280), (80, 398624), (128, 249140), (160, 199312), (256, 124570), (320, 99656), (512, 62285), (640, 49828), (1280, 24914), (2560, 12457)]