81431352

素因数分解:

$2^3\times 3^3\times {\mathrm{277}}^1\times {\mathrm{1361}}^1$

素因数の和:1653

約数の個数: 64

約数和(自身を含む): 227181600

約数和(自身を除く): 145750248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 277, 554, 831, 1108, 1361, 1662, 2216, 2493, 2722, 3324, 4083, 4986, 5444, 6648, 7479, 8166, 9972, 10888, 12249, 14958, 16332, 19944, 24498, 29916, 32664, 36747, 48996, 59832, 73494, 97992, 146988, 293976, 376997, 753994, 1130991, 1507988, 2261982, 3015976, 3392973, 4523964, 6785946, 9047928, 10178919, 13571892, 20357838, 27143784, 40715676, 81431352]

約数ペア:

[(1, 81431352), (2, 40715676), (3, 27143784), (4, 20357838), (6, 13571892), (8, 10178919), (9, 9047928), (12, 6785946), (18, 4523964), (24, 3392973), (27, 3015976), (36, 2261982), (54, 1507988), (72, 1130991), (108, 753994), (216, 376997), (277, 293976), (554, 146988), (831, 97992), (1108, 73494), (1361, 59832), (1662, 48996), (2216, 36747), (2493, 32664), (2722, 29916), (3324, 24498), (4083, 19944), (4986, 16332), (5444, 14958), (6648, 12249), (7479, 10888), (8166, 9972)]