20593280

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1399}}^1$

素因数の和:1441

約数の個数: 64

約数和(自身を含む): 51408000

約数和(自身を除く): 30814720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1399, 1472, 1840, 2798, 2944, 3680, 5596, 6995, 7360, 11192, 13990, 14720, 22384, 27980, 32177, 44768, 55960, 64354, 89536, 111920, 128708, 160885, 179072, 223840, 257416, 321770, 447680, 514832, 643540, 895360, 1029664, 1287080, 2059328, 2574160, 4118656, 5148320, 10296640, 20593280]

約数ペア:

[(1, 20593280), (2, 10296640), (4, 5148320), (5, 4118656), (8, 2574160), (10, 2059328), (16, 1287080), (20, 1029664), (23, 895360), (32, 643540), (40, 514832), (46, 447680), (64, 321770), (80, 257416), (92, 223840), (115, 179072), (128, 160885), (160, 128708), (184, 111920), (230, 89536), (320, 64354), (368, 55960), (460, 44768), (640, 32177), (736, 27980), (920, 22384), (1399, 14720), (1472, 13990), (1840, 11192), (2798, 7360), (2944, 6995), (3680, 5596)]