208036220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2311}}^1$

素因数の和:2970

約数の個数: 48

約数和(自身を含む): 500279808

約数和(自身を除く): 292243588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2311, 2572, 3215, 4501, 4622, 6430, 9002, 9244, 11555, 12860, 16177, 18004, 22505, 23110, 32354, 45010, 46220, 64708, 80885, 90020, 161770, 323540, 1485973, 2971946, 5943892, 7429865, 10401811, 14859730, 20803622, 29719460, 41607244, 52009055, 104018110, 208036220]

約数ペア:

[(1, 208036220), (2, 104018110), (4, 52009055), (5, 41607244), (7, 29719460), (10, 20803622), (14, 14859730), (20, 10401811), (28, 7429865), (35, 5943892), (70, 2971946), (140, 1485973), (643, 323540), (1286, 161770), (2311, 90020), (2572, 80885), (3215, 64708), (4501, 46220), (4622, 45010), (6430, 32354), (9002, 23110), (9244, 22505), (11555, 18004), (12860, 16177)]