26155540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{191}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 56899584

約数和(自身を除く): 30744044

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 167, 191, 205, 334, 382, 410, 668, 764, 820, 835, 955, 1670, 1910, 3340, 3820, 6847, 7831, 13694, 15662, 27388, 31324, 31897, 34235, 39155, 63794, 68470, 78310, 127588, 136940, 156620, 159485, 318970, 637940, 1307777, 2615554, 5231108, 6538885, 13077770, 26155540]

約数ペア:

[(1, 26155540), (2, 13077770), (4, 6538885), (5, 5231108), (10, 2615554), (20, 1307777), (41, 637940), (82, 318970), (164, 159485), (167, 156620), (191, 136940), (205, 127588), (334, 78310), (382, 68470), (410, 63794), (668, 39155), (764, 34235), (820, 31897), (835, 31324), (955, 27388), (1670, 15662), (1910, 13694), (3340, 7831), (3820, 6847)]