197366980

素因数分解:

$2^2\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{7901}}^1$

素因数の和:9159

約数の個数: 24

約数和(自身を含む): 414855000

約数和(自身を除く): 217488020

約数列:

[1, 2, 4, 5, 10, 20, 1249, 2498, 4996, 6245, 7901, 12490, 15802, 24980, 31604, 39505, 79010, 158020, 9868349, 19736698, 39473396, 49341745, 98683490, 197366980]

約数ペア:

[(1, 197366980), (2, 98683490), (4, 49341745), (5, 39473396), (10, 19736698), (20, 9868349), (1249, 158020), (2498, 79010), (4996, 39505), (6245, 31604), (7901, 24980), (12490, 15802)]