8161640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10739}}^1$

素因数の和:10769

約数の個数: 32

約数和(自身を含む): 19332000

約数和(自身を除く): 11170360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 10739, 21478, 42956, 53695, 85912, 107390, 204041, 214780, 408082, 429560, 816164, 1020205, 1632328, 2040410, 4080820, 8161640]

約数ペア:

[(1, 8161640), (2, 4080820), (4, 2040410), (5, 1632328), (8, 1020205), (10, 816164), (19, 429560), (20, 408082), (38, 214780), (40, 204041), (76, 107390), (95, 85912), (152, 53695), (190, 42956), (380, 21478), (760, 10739)]