12765440

素因数分解:

$2^8\times 5^1\times {\mathrm{9973}}^1$

素因数の和:9994

約数の個数: 36

約数和(自身を含む): 30580284

約数和(自身を除く): 17814844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 9973, 19946, 39892, 49865, 79784, 99730, 159568, 199460, 319136, 398920, 638272, 797840, 1276544, 1595680, 2553088, 3191360, 6382720, 12765440]

約数ペア:

[(1, 12765440), (2, 6382720), (4, 3191360), (5, 2553088), (8, 1595680), (10, 1276544), (16, 797840), (20, 638272), (32, 398920), (40, 319136), (64, 199460), (80, 159568), (128, 99730), (160, 79784), (256, 49865), (320, 39892), (640, 19946), (1280, 9973)]