145780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 316008

約数和(自身を除く): 170228

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 197, 370, 394, 740, 788, 985, 1970, 3940, 7289, 14578, 29156, 36445, 72890, 145780]

約数ペア:

[(1, 145780), (2, 72890), (4, 36445), (5, 29156), (10, 14578), (20, 7289), (37, 3940), (74, 1970), (148, 985), (185, 788), (197, 740), (370, 394)]