209250980

素因数分解:

$2^2\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{8597}}^1$

素因数の和:9823

約数の個数: 24

約数和(自身を含む): 439839288

約数和(自身を除く): 230588308

約数列:

[1, 2, 4, 5, 10, 20, 1217, 2434, 4868, 6085, 8597, 12170, 17194, 24340, 34388, 42985, 85970, 171940, 10462549, 20925098, 41850196, 52312745, 104625490, 209250980]

約数ペア:

[(1, 209250980), (2, 104625490), (4, 52312745), (5, 41850196), (10, 20925098), (20, 10462549), (1217, 171940), (2434, 85970), (4868, 42985), (6085, 34388), (8597, 24340), (12170, 17194)]