161130820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{196501}}^1$

素因数の和:196551

約数の個数: 24

約数和(自身を含む): 346629528

約数和(自身を除く): 185498708

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 196501, 393002, 786004, 982505, 1965010, 3930020, 8056541, 16113082, 32226164, 40282705, 80565410, 161130820]

約数ペア:

[(1, 161130820), (2, 80565410), (4, 40282705), (5, 32226164), (10, 16113082), (20, 8056541), (41, 3930020), (82, 1965010), (164, 982505), (205, 786004), (410, 393002), (820, 196501)]