254554640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{102643}}^1$

素因数の和:102687

約数の個数: 40

約数和(自身を含む): 610937088

約数和(自身を除く): 356382448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 102643, 205286, 410572, 513215, 821144, 1026430, 1642288, 2052860, 3181933, 4105720, 6363866, 8211440, 12727732, 15909665, 25455464, 31819330, 50910928, 63638660, 127277320, 254554640]

約数ペア:

[(1, 254554640), (2, 127277320), (4, 63638660), (5, 50910928), (8, 31819330), (10, 25455464), (16, 15909665), (20, 12727732), (31, 8211440), (40, 6363866), (62, 4105720), (80, 3181933), (124, 2052860), (155, 1642288), (248, 1026430), (310, 821144), (496, 513215), (620, 410572), (1240, 205286), (2480, 102643)]