20308480

素因数分解:

$2^9\times 5^1\times {\mathrm{7933}}^1$

素因数の和:7956

約数の個数: 40

約数和(自身を含む): 48698892

約数和(自身を除く): 28390412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7933, 15866, 31732, 39665, 63464, 79330, 126928, 158660, 253856, 317320, 507712, 634640, 1015424, 1269280, 2030848, 2538560, 4061696, 5077120, 10154240, 20308480]

約数ペア:

[(1, 20308480), (2, 10154240), (4, 5077120), (5, 4061696), (8, 2538560), (10, 2030848), (16, 1269280), (20, 1015424), (32, 634640), (40, 507712), (64, 317320), (80, 253856), (128, 158660), (160, 126928), (256, 79330), (320, 63464), (512, 39665), (640, 31732), (1280, 15866), (2560, 7933)]