127788260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1069}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 276830400

約数和(自身を除く): 149042140

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 172, 215, 278, 430, 556, 695, 860, 1069, 1390, 2138, 2780, 4276, 5345, 5977, 10690, 11954, 21380, 23908, 29885, 45967, 59770, 91934, 119540, 148591, 183868, 229835, 297182, 459670, 594364, 742955, 919340, 1485910, 2971820, 6389413, 12778826, 25557652, 31947065, 63894130, 127788260]

約数ペア:

[(1, 127788260), (2, 63894130), (4, 31947065), (5, 25557652), (10, 12778826), (20, 6389413), (43, 2971820), (86, 1485910), (139, 919340), (172, 742955), (215, 594364), (278, 459670), (430, 297182), (556, 229835), (695, 183868), (860, 148591), (1069, 119540), (1390, 91934), (2138, 59770), (2780, 45967), (4276, 29885), (5345, 23908), (5977, 21380), (10690, 11954)]