278313712

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{259621}}^1$

素因数の和:259696

約数の個数: 20

約数和(自身を含む): 547283176

約数和(自身を除く): 268969464

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 259621, 519242, 1038484, 2076968, 4153936, 17394607, 34789214, 69578428, 139156856, 278313712]

約数ペア:

[(1, 278313712), (2, 139156856), (4, 69578428), (8, 34789214), (16, 17394607), (67, 4153936), (134, 2076968), (268, 1038484), (536, 519242), (1072, 259621)]