16627980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{643}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 30110964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 643, 862, 1286, 1293, 1724, 1929, 2155, 2572, 2586, 3215, 3858, 4310, 5172, 6430, 6465, 7716, 8620, 9645, 12860, 12930, 19290, 25860, 38580, 277133, 554266, 831399, 1108532, 1385665, 1662798, 2771330, 3325596, 4156995, 5542660, 8313990, 16627980]

約数ペア:

[(1, 16627980), (2, 8313990), (3, 5542660), (4, 4156995), (5, 3325596), (6, 2771330), (10, 1662798), (12, 1385665), (15, 1108532), (20, 831399), (30, 554266), (60, 277133), (431, 38580), (643, 25860), (862, 19290), (1286, 12930), (1293, 12860), (1724, 9645), (1929, 8620), (2155, 7716), (2572, 6465), (2586, 6430), (3215, 5172), (3858, 4310)]