20314240

素因数分解:

$2^7\times 5^1\times {\mathrm{31741}}^1$

素因数の和:31760

約数の個数: 32

約数和(自身を含む): 48565260

約数和(自身を除く): 28251020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31741, 63482, 126964, 158705, 253928, 317410, 507856, 634820, 1015712, 1269640, 2031424, 2539280, 4062848, 5078560, 10157120, 20314240]

約数ペア:

[(1, 20314240), (2, 10157120), (4, 5078560), (5, 4062848), (8, 2539280), (10, 2031424), (16, 1269640), (20, 1015712), (32, 634820), (40, 507856), (64, 317410), (80, 253928), (128, 158705), (160, 126964), (320, 63482), (640, 31741)]