129021020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{2083}}^1$

素因数の和:2274

約数の個数: 48

約数和(自身を含む): 287091840

約数和(自身を除く): 158070820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 163, 190, 326, 380, 652, 815, 1630, 2083, 3097, 3260, 4166, 6194, 8332, 10415, 12388, 15485, 20830, 30970, 39577, 41660, 61940, 79154, 158308, 197885, 339529, 395770, 679058, 791540, 1358116, 1697645, 3395290, 6451051, 6790580, 12902102, 25804204, 32255255, 64510510, 129021020]

約数ペア:

[(1, 129021020), (2, 64510510), (4, 32255255), (5, 25804204), (10, 12902102), (19, 6790580), (20, 6451051), (38, 3395290), (76, 1697645), (95, 1358116), (163, 791540), (190, 679058), (326, 395770), (380, 339529), (652, 197885), (815, 158308), (1630, 79154), (2083, 61940), (3097, 41660), (3260, 39577), (4166, 30970), (6194, 20830), (8332, 15485), (10415, 12388)]