81117720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{75109}}^1$

素因数の和:75129

約数の個数: 64

約数和(自身を含む): 270396000

約数和(自身を除く): 189278280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 75109, 150218, 225327, 300436, 375545, 450654, 600872, 675981, 751090, 901308, 1126635, 1351962, 1502180, 1802616, 2027943, 2253270, 2703924, 3004360, 3379905, 4055886, 4506540, 5407848, 6759810, 8111772, 9013080, 10139715, 13519620, 16223544, 20279430, 27039240, 40558860, 81117720]

約数ペア:

[(1, 81117720), (2, 40558860), (3, 27039240), (4, 20279430), (5, 16223544), (6, 13519620), (8, 10139715), (9, 9013080), (10, 8111772), (12, 6759810), (15, 5407848), (18, 4506540), (20, 4055886), (24, 3379905), (27, 3004360), (30, 2703924), (36, 2253270), (40, 2027943), (45, 1802616), (54, 1502180), (60, 1351962), (72, 1126635), (90, 901308), (108, 751090), (120, 675981), (135, 600872), (180, 450654), (216, 375545), (270, 300436), (360, 225327), (540, 150218), (1080, 75109)]