1261891940

素因数分解:

$2^2\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{48497}}^1$

素因数の和:49807

約数の個数: 24

約数和(自身を含む): 2652064632

約数和(自身を除く): 1390172692

約数列:

[1, 2, 4, 5, 10, 20, 1301, 2602, 5204, 6505, 13010, 26020, 48497, 96994, 193988, 242485, 484970, 969940, 63094597, 126189194, 252378388, 315472985, 630945970, 1261891940]

約数ペア:

[(1, 1261891940), (2, 630945970), (4, 315472985), (5, 252378388), (10, 126189194), (20, 63094597), (1301, 969940), (2602, 484970), (5204, 242485), (6505, 193988), (13010, 96994), (26020, 48497)]