30686740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 75813192

約数和(自身を除く): 45126452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 173, 181, 196, 245, 346, 362, 490, 692, 724, 865, 905, 980, 1211, 1267, 1730, 1810, 2422, 2534, 3460, 3620, 4844, 5068, 6055, 6335, 8477, 8869, 12110, 12670, 16954, 17738, 24220, 25340, 31313, 33908, 35476, 42385, 44345, 62626, 84770, 88690, 125252, 156565, 169540, 177380, 219191, 313130, 438382, 626260, 876764, 1095955, 1534337, 2191910, 3068674, 4383820, 6137348, 7671685, 15343370, 30686740]

約数ペア:

[(1, 30686740), (2, 15343370), (4, 7671685), (5, 6137348), (7, 4383820), (10, 3068674), (14, 2191910), (20, 1534337), (28, 1095955), (35, 876764), (49, 626260), (70, 438382), (98, 313130), (140, 219191), (173, 177380), (181, 169540), (196, 156565), (245, 125252), (346, 88690), (362, 84770), (490, 62626), (692, 44345), (724, 42385), (865, 35476), (905, 33908), (980, 31313), (1211, 25340), (1267, 24220), (1730, 17738), (1810, 16954), (2422, 12670), (2534, 12110), (3460, 8869), (3620, 8477), (4844, 6335), (5068, 6055)]