81744030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{997}}^1$

素因数の和:1921

約数の個数: 48

約数和(自身を含む): 212981184

約数和(自身を除く): 131237154

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 911, 997, 1822, 1994, 2733, 2991, 4555, 4985, 5466, 5982, 8199, 8973, 9110, 9970, 13665, 14955, 16398, 17946, 27330, 29910, 40995, 44865, 81990, 89730, 908267, 1816534, 2724801, 4541335, 5449602, 8174403, 9082670, 13624005, 16348806, 27248010, 40872015, 81744030]

約数ペア:

[(1, 81744030), (2, 40872015), (3, 27248010), (5, 16348806), (6, 13624005), (9, 9082670), (10, 8174403), (15, 5449602), (18, 4541335), (30, 2724801), (45, 1816534), (90, 908267), (911, 89730), (997, 81990), (1822, 44865), (1994, 40995), (2733, 29910), (2991, 27330), (4555, 17946), (4985, 16398), (5466, 14955), (5982, 13665), (8199, 9970), (8973, 9110)]