81585280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18211}}^1$

素因数の和:18237

約数の個数: 64

約数和(自身を含む): 222914880

約数和(自身を除く): 141329600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 18211, 36422, 72844, 91055, 127477, 145688, 182110, 254954, 291376, 364220, 509908, 582752, 637385, 728440, 1019816, 1165504, 1274770, 1456880, 2039632, 2331008, 2549540, 2913760, 4079264, 5099080, 5827520, 8158528, 10198160, 11655040, 16317056, 20396320, 40792640, 81585280]

約数ペア:

[(1, 81585280), (2, 40792640), (4, 20396320), (5, 16317056), (7, 11655040), (8, 10198160), (10, 8158528), (14, 5827520), (16, 5099080), (20, 4079264), (28, 2913760), (32, 2549540), (35, 2331008), (40, 2039632), (56, 1456880), (64, 1274770), (70, 1165504), (80, 1019816), (112, 728440), (128, 637385), (140, 582752), (160, 509908), (224, 364220), (280, 291376), (320, 254954), (448, 182110), (560, 145688), (640, 127477), (896, 91055), (1120, 72844), (2240, 36422), (4480, 18211)]