66487688

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{1039}}^1$

素因数の和:1485

約数の個数: 32

約数和(自身を含む): 131664000

約数和(自身を除く): 65176312

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 421, 842, 1039, 1684, 2078, 3368, 4156, 7999, 8312, 15998, 19741, 31996, 39482, 63992, 78964, 157928, 437419, 874838, 1749676, 3499352, 8310961, 16621922, 33243844, 66487688]

約数ペア:

[(1, 66487688), (2, 33243844), (4, 16621922), (8, 8310961), (19, 3499352), (38, 1749676), (76, 874838), (152, 437419), (421, 157928), (842, 78964), (1039, 63992), (1684, 39482), (2078, 31996), (3368, 19741), (4156, 15998), (7999, 8312)]