323080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 748440

約数和(自身を除く): 425360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 197, 205, 328, 394, 410, 788, 820, 985, 1576, 1640, 1970, 3940, 7880, 8077, 16154, 32308, 40385, 64616, 80770, 161540, 323080]

約数ペア:

[(1, 323080), (2, 161540), (4, 80770), (5, 64616), (8, 40385), (10, 32308), (20, 16154), (40, 8077), (41, 7880), (82, 3940), (164, 1970), (197, 1640), (205, 1576), (328, 985), (394, 820), (410, 788)]