81563940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{453133}}^1$

素因数の和:453148

約数の個数: 36

約数和(自身を含む): 247411164

約数和(自身を除く): 165847224

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 453133, 906266, 1359399, 1812532, 2265665, 2718798, 4078197, 4531330, 5437596, 6796995, 8156394, 9062660, 13593990, 16312788, 20390985, 27187980, 40781970, 81563940]

約数ペア:

[(1, 81563940), (2, 40781970), (3, 27187980), (4, 20390985), (5, 16312788), (6, 13593990), (9, 9062660), (10, 8156394), (12, 6796995), (15, 5437596), (18, 4531330), (20, 4078197), (30, 2718798), (36, 2265665), (45, 1812532), (60, 1359399), (90, 906266), (180, 453133)]