156620

素因数分解:

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

素因数の和:241

約数の個数: 24

約数和(自身を含む): 338688

約数和(自身を除く): 182068

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 191, 205, 382, 410, 764, 820, 955, 1910, 3820, 7831, 15662, 31324, 39155, 78310, 156620]

約数ペア:

[(1, 156620), (2, 78310), (4, 39155), (5, 31324), (10, 15662), (20, 7831), (41, 3820), (82, 1910), (164, 955), (191, 820), (205, 764), (382, 410)]