40067840

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1361}}^1$

素因数の和:1405

約数の個数: 72

約数和(自身を含む): 100221408

約数和(自身を除く): 60153568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 736, 920, 1280, 1361, 1472, 1840, 2722, 2944, 3680, 5444, 5888, 6805, 7360, 10888, 13610, 14720, 21776, 27220, 29440, 31303, 43552, 54440, 62606, 87104, 108880, 125212, 156515, 174208, 217760, 250424, 313030, 348416, 435520, 500848, 626060, 871040, 1001696, 1252120, 1742080, 2003392, 2504240, 4006784, 5008480, 8013568, 10016960, 20033920, 40067840]

約数ペア:

[(1, 40067840), (2, 20033920), (4, 10016960), (5, 8013568), (8, 5008480), (10, 4006784), (16, 2504240), (20, 2003392), (23, 1742080), (32, 1252120), (40, 1001696), (46, 871040), (64, 626060), (80, 500848), (92, 435520), (115, 348416), (128, 313030), (160, 250424), (184, 217760), (230, 174208), (256, 156515), (320, 125212), (368, 108880), (460, 87104), (640, 62606), (736, 54440), (920, 43552), (1280, 31303), (1361, 29440), (1472, 27220), (1840, 21776), (2722, 14720), (2944, 13610), (3680, 10888), (5444, 7360), (5888, 6805)]