16391920

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3359}}^1$

素因数の和:3433

約数の個数: 40

約数和(自身を含む): 38747520

約数和(自身を除く): 22355600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3359, 4880, 6718, 13436, 16795, 26872, 33590, 53744, 67180, 134360, 204899, 268720, 409798, 819596, 1024495, 1639192, 2048990, 3278384, 4097980, 8195960, 16391920]

約数ペア:

[(1, 16391920), (2, 8195960), (4, 4097980), (5, 3278384), (8, 2048990), (10, 1639192), (16, 1024495), (20, 819596), (40, 409798), (61, 268720), (80, 204899), (122, 134360), (244, 67180), (305, 53744), (488, 33590), (610, 26872), (976, 16795), (1220, 13436), (2440, 6718), (3359, 4880)]