7890991490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1\times {\mathrm{1217}}^1$

素因数の和:2171

約数の個数: 64

約数和(自身を含む): 15419061504

約数和(自身を除く): 7528070014

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 887, 1217, 1462, 1774, 2434, 3655, 4435, 6085, 7310, 8870, 12170, 15079, 20689, 30158, 38141, 41378, 52331, 75395, 76282, 103445, 104662, 150790, 190705, 206890, 261655, 381410, 523310, 648397, 889627, 1079479, 1296794, 1779254, 2158958, 3241985, 4448135, 5397395, 6483970, 8896270, 10794790, 18351143, 36702286, 46417597, 91755715, 92835194, 183511430, 232087985, 464175970, 789099149, 1578198298, 3945495745, 7890991490]

約数ペア:

[(1, 7890991490), (2, 3945495745), (5, 1578198298), (10, 789099149), (17, 464175970), (34, 232087985), (43, 183511430), (85, 92835194), (86, 91755715), (170, 46417597), (215, 36702286), (430, 18351143), (731, 10794790), (887, 8896270), (1217, 6483970), (1462, 5397395), (1774, 4448135), (2434, 3241985), (3655, 2158958), (4435, 1779254), (6085, 1296794), (7310, 1079479), (8870, 889627), (12170, 648397), (15079, 523310), (20689, 381410), (30158, 261655), (38141, 206890), (41378, 190705), (52331, 150790), (75395, 104662), (76282, 103445)]