80189820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{445499}}^1$

素因数の和:445514

約数の個数: 36

約数和(自身を含む): 243243000

約数和(自身を除く): 163053180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 445499, 890998, 1336497, 1781996, 2227495, 2672994, 4009491, 4454990, 5345988, 6682485, 8018982, 8909980, 13364970, 16037964, 20047455, 26729940, 40094910, 80189820]

約数ペア:

[(1, 80189820), (2, 40094910), (3, 26729940), (4, 20047455), (5, 16037964), (6, 13364970), (9, 8909980), (10, 8018982), (12, 6682485), (15, 5345988), (18, 4454990), (20, 4009491), (30, 2672994), (36, 2227495), (45, 1781996), (60, 1336497), (90, 890998), (180, 445499)]