40099880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2777}}^1$

素因数の和:2826

約数の個数: 48

約数和(自身を含む): 95257620

約数和(自身を除く): 55157740

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2777, 2888, 3610, 5554, 7220, 11108, 13885, 14440, 22216, 27770, 52763, 55540, 105526, 111080, 211052, 263815, 422104, 527630, 1002497, 1055260, 2004994, 2110520, 4009988, 5012485, 8019976, 10024970, 20049940, 40099880]

約数ペア:

[(1, 40099880), (2, 20049940), (4, 10024970), (5, 8019976), (8, 5012485), (10, 4009988), (19, 2110520), (20, 2004994), (38, 1055260), (40, 1002497), (76, 527630), (95, 422104), (152, 263815), (190, 211052), (361, 111080), (380, 105526), (722, 55540), (760, 52763), (1444, 27770), (1805, 22216), (2777, 14440), (2888, 13885), (3610, 11108), (5554, 7220)]