65344640

素因数分解:

$2^7\times 5^1\times {\mathrm{102101}}^1$

素因数の和:102120

約数の個数: 32

約数和(自身を含む): 156216060

約数和(自身を除く): 90871420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 102101, 204202, 408404, 510505, 816808, 1021010, 1633616, 2042020, 3267232, 4084040, 6534464, 8168080, 13068928, 16336160, 32672320, 65344640]

約数ペア:

[(1, 65344640), (2, 32672320), (4, 16336160), (5, 13068928), (8, 8168080), (10, 6534464), (16, 4084040), (20, 3267232), (32, 2042020), (40, 1633616), (64, 1021010), (80, 816808), (128, 510505), (160, 408404), (320, 204202), (640, 102101)]