20946560

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1423}}^1$

素因数の和:1465

約数の個数: 64

約数和(自身を含む): 52289280

約数和(自身を除く): 31342720

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, 1423, 1472, 1840, 2846, 2944, 3680, 5692, 7115, 7360, 11384, 14230, 14720, 22768, 28460, 32729, 45536, 56920, 65458, 91072, 113840, 130916, 163645, 182144, 227680, 261832, 327290, 455360, 523664, 654580, 910720, 1047328, 1309160, 2094656, 2618320, 4189312, 5236640, 10473280, 20946560]

約数ペア:

[(1, 20946560), (2, 10473280), (4, 5236640), (5, 4189312), (8, 2618320), (10, 2094656), (16, 1309160), (20, 1047328), (23, 910720), (32, 654580), (40, 523664), (46, 455360), (64, 327290), (80, 261832), (92, 227680), (115, 182144), (128, 163645), (160, 130916), (184, 113840), (230, 91072), (320, 65458), (368, 56920), (460, 45536), (640, 32729), (736, 28460), (920, 22768), (1423, 14720), (1472, 14230), (1840, 11384), (2846, 7360), (2944, 7115), (3680, 5692)]