407942384

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{191}}^1\times {\mathrm{1019}}^1$

素因数の和:1349

約数の個数: 40

約数和(自身を含む): 801377280

約数和(自身を除く): 393434896

約数列:

[1, 2, 4, 8, 16, 131, 191, 262, 382, 524, 764, 1019, 1048, 1528, 2038, 2096, 3056, 4076, 8152, 16304, 25021, 50042, 100084, 133489, 194629, 200168, 266978, 389258, 400336, 533956, 778516, 1067912, 1557032, 2135824, 3114064, 25496399, 50992798, 101985596, 203971192, 407942384]

約数ペア:

[(1, 407942384), (2, 203971192), (4, 101985596), (8, 50992798), (16, 25496399), (131, 3114064), (191, 2135824), (262, 1557032), (382, 1067912), (524, 778516), (764, 533956), (1019, 400336), (1048, 389258), (1528, 266978), (2038, 200168), (2096, 194629), (3056, 133489), (4076, 100084), (8152, 50042), (16304, 25021)]