20615680

素因数分解:

$2^9\times 5^1\times {\mathrm{8053}}^1$

素因数の和:8076

約数の個数: 40

約数和(自身を含む): 49435452

約数和(自身を除く): 28819772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8053, 16106, 32212, 40265, 64424, 80530, 128848, 161060, 257696, 322120, 515392, 644240, 1030784, 1288480, 2061568, 2576960, 4123136, 5153920, 10307840, 20615680]

約数ペア:

[(1, 20615680), (2, 10307840), (4, 5153920), (5, 4123136), (8, 2576960), (10, 2061568), (16, 1288480), (20, 1030784), (32, 644240), (40, 515392), (64, 322120), (80, 257696), (128, 161060), (160, 128848), (256, 80530), (320, 64424), (512, 40265), (640, 32212), (1280, 16106), (2560, 8053)]