20033920

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1361}}^1$

素因数の和:1403

約数の個数: 64

約数和(自身を含む): 50012640

約数和(自身を除く): 29978720

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, 1361, 1472, 1840, 2722, 2944, 3680, 5444, 6805, 7360, 10888, 13610, 14720, 21776, 27220, 31303, 43552, 54440, 62606, 87104, 108880, 125212, 156515, 174208, 217760, 250424, 313030, 435520, 500848, 626060, 871040, 1001696, 1252120, 2003392, 2504240, 4006784, 5008480, 10016960, 20033920]

約数ペア:

[(1, 20033920), (2, 10016960), (4, 5008480), (5, 4006784), (8, 2504240), (10, 2003392), (16, 1252120), (20, 1001696), (23, 871040), (32, 626060), (40, 500848), (46, 435520), (64, 313030), (80, 250424), (92, 217760), (115, 174208), (128, 156515), (160, 125212), (184, 108880), (230, 87104), (320, 62606), (368, 54440), (460, 43552), (640, 31303), (736, 27220), (920, 21776), (1361, 14720), (1472, 13610), (1840, 10888), (2722, 7360), (2944, 6805), (3680, 5444)]