144640

素因数分解:

$2^8\times 5^1\times {\mathrm{113}}^1$

素因数の和:134

約数の個数: 36

約数和(自身を含む): 349524

約数和(自身を除く): 204884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 128, 160, 226, 256, 320, 452, 565, 640, 904, 1130, 1280, 1808, 2260, 3616, 4520, 7232, 9040, 14464, 18080, 28928, 36160, 72320, 144640]

約数ペア:

[(1, 144640), (2, 72320), (4, 36160), (5, 28928), (8, 18080), (10, 14464), (16, 9040), (20, 7232), (32, 4520), (40, 3616), (64, 2260), (80, 1808), (113, 1280), (128, 1130), (160, 904), (226, 640), (256, 565), (320, 452)]