78832180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{313}}^1$

素因数の和:593

約数の個数: 72

約数和(自身を含む): 193942728

約数和(自身を除く): 115110548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 257, 313, 490, 514, 626, 980, 1028, 1252, 1285, 1565, 1799, 2191, 2570, 3130, 3598, 4382, 5140, 6260, 7196, 8764, 8995, 10955, 12593, 15337, 17990, 21910, 25186, 30674, 35980, 43820, 50372, 61348, 62965, 76685, 80441, 125930, 153370, 160882, 251860, 306740, 321764, 402205, 563087, 804410, 1126174, 1608820, 2252348, 2815435, 3941609, 5630870, 7883218, 11261740, 15766436, 19708045, 39416090, 78832180]

約数ペア:

[(1, 78832180), (2, 39416090), (4, 19708045), (5, 15766436), (7, 11261740), (10, 7883218), (14, 5630870), (20, 3941609), (28, 2815435), (35, 2252348), (49, 1608820), (70, 1126174), (98, 804410), (140, 563087), (196, 402205), (245, 321764), (257, 306740), (313, 251860), (490, 160882), (514, 153370), (626, 125930), (980, 80441), (1028, 76685), (1252, 62965), (1285, 61348), (1565, 50372), (1799, 43820), (2191, 35980), (2570, 30674), (3130, 25186), (3598, 21910), (4382, 17990), (5140, 15337), (6260, 12593), (7196, 10955), (8764, 8995)]