1291288310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{431869}}^1$

素因数の和:431912

約数の個数: 32

約数和(自身を含む): 2611949760

約数和(自身を除く): 1320661450

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 431869, 863738, 2159345, 4318690, 5614297, 9932987, 11228594, 19865974, 28071485, 49664935, 56142970, 99329870, 129128831, 258257662, 645644155, 1291288310]

約数ペア:

[(1, 1291288310), (2, 645644155), (5, 258257662), (10, 129128831), (13, 99329870), (23, 56142970), (26, 49664935), (46, 28071485), (65, 19865974), (115, 11228594), (130, 9932987), (230, 5614297), (299, 4318690), (598, 2159345), (1495, 863738), (2990, 431869)]